Earthquake close to Swansea, United Kingdom - February 17, 2018

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Damage report in cooperation with the 2018 Earthquake Impact Database

Update February 19, 09:08 UTC: 2 houses were damaged during this earthquake


Update 22:44 UTC: Seismologist Stephen Hicks (@seismosteve) did a preliminary analysis from today's earthquake and published it as a twitter thread. Here is his content :
** Some preliminary geological interpretations about today's Swansea South Wales, UK magnitude 4.2-4.7 #earthquake (magnitude estimates vary between reporting organizations)
** Faulting mechanism (shown by the "beach ball" below) calculated by GFZ indicates a "strike-slip" type of faulting, which implies that the blocks of ground on either side of the fault moved horizontally with respect to each other during the earthquake.
(ER: Do beach balls looks like Chinese or Latin to you, check this article "Understanding Beach Balls")

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** During today's earthquake, the fault rupture did not reach the surface, and no roads were broken into two!
** Although the beach-ball tells us about block motion, we cannot determine the exact orientation of the fault. The fault is aligned in either a northeast-southwest or a northwest-southeast direction; cannot tell which. Need other geological/geophysical evidence to find the fault!
** To find the ruptured fault, we can use satellite data (no good for such a small quake!), map cracks at the surface caused by the quake (too small & deep!), map the pattern of aftershocks (not enough at this stage / locations too "fuzzy"), or try to model slip along the fault.
** With the above options not suitable, an alternative is to look at geological maps of the area to find where faults appear at the surface. These *may* represent the pattern of deeper faults in the crust - particularly at 7 km (4 miles) depth where the earthquake occurred.
** Putting the location and mechanism of today's earthquake on a geological map shows that the earthquake lies quite close to the Swansea Valley Fault Zone ("SVFZ" on the map), and the faulting style is consistent with the sense of slip mapped along the fault ("left-lateral").

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** Details of the Swansea Valley Fault Zone are hazy, but one research paper indicates that the fault has been active since the Devonian geological period so this fault may be over 350 million years old!
** The Swansea Valley Fault was probably altered quite considerably and reactivated by the Variscan orogeny - a major phase of mountain building, which resulted in Himalayan-scale peaks, beginning approx. 290 million years ago.
** Regardless of the fault's history, the slow transfer of stress from the active tectonic areas of the Mediterranean to the south, and the mid-Atlantic ridge to the west, probably contributed to the re-activation of the fault during today's relatively small earthquake.

Update 22:42 UTC: Seismologist Stephen Hicks : earthquakes in the UK rupture faults that are super old - possibly up to several billion years old in some cases!

Update 18:00 UTC: We have still no knowledge of any damage. Let's hope it will remain like that. We will update this article whenever we would detect damage, even light damage.

Update 15:28 UTC: We apologize for the downtime but our server could not cope with demand.

Update 15:27 UTC: Seismogram as recorded in a seismological station near Glasbury

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Update 15:25 UTC: GDS: Event epicentre approx 20km NNE of Swansea, with 4.4 magnitude at a depth of 7.4km. Events of this magnitude only happen in the UK every 2-3 years.

Update 15:21 UTC: NO signs of any damage so far

Update 15:21 UTC: shocks were felt from Cornwall to Blackpool

Update 14:53 UTC: Shaking map with possible related damage from the natural disaster specialists at CATnews (Risklayer - CEDIM), Karlsruhe, Germany. Map generated by Andreas Schäfer.

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Update 14:51 UTC: UK Professor Steven Hicks

Update 14:47 UTC: We do think that this earthquake can cause some damage because of the building styles in the UK. Brick houses are vulnerable for cracks in walls, collapsed chimneys etc.

Update 14:40 UTC: Based on the present earthquake parameters (Magnitude, Depth, Population, etc) and our experience with earthquake damage impact, does expect at least some slight damage like cracks in walls, fallen tiles, etc.

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Most important Earthquake Data:

Magnitude : 3.9

Local Time (conversion only below land) : 2018-02-17 14:31:08

GMT/UTC Time : 2018-02-17 14:31:08

Depth (Hypocenter) : 10 km

Depth and Magnitude updates in the list below.

Donation - long - San Francisco

Share your earthquake experience (I Have Felt It) with our readers.
Click on the "I Felt It" button behind the corresponding earthquake. Your earthquake experience is not only important for science, but also for people in the area as well as our global readership.

Refresh this list
SRC Location UTC Date/time M D INFO
GEOFON United Kingdom Feb 17 14:31 3.9 10 MAP I Felt It INFO
  • Waukesha, USA - The shaking lasted around ten seconds, a few small objects rolled off their surfaces very very very minor damage to outdoor fence.
  • Los Angeles, CA - Very weak shaking
  • Los Angeles, CA - I woke up to hearing creeking sounds in my apartment, when I fully woke up I realized the bucks in was shaking. It lasted approximately 5 seconds.
  • Cheltenham - It was shaking for 10 seconds and was light but photos on the wall fell off but the house wasn\'t damaged.
  • barnstaple - 3 - 5 seconds
  • Bristol - Light shaking
  • Heddington - No damage 20 seconds long
  • Cullompton - Two very minor tremors a few minutes ago - mild rattle of things on shelf in upstairs bedroom
  • Weston-super-Mare - Felt the shaking at 14:32 in Weston-Super-Mare, North Somerset, UK
  • Bristol - It lasted about 6 seconds and the walls were shaking !!!
  • Quethiock - I was sat in my kitchen and the kitchen table where I was using my computer started to tremble I could feel the vibration through my arms resting on the table. It shook for about 3 seconds. No damage occurred it was a very subtle tremor but not like anything I have ever felt before.
  • Carmarthen - Shaking lasted about five seconds. No damage apparent. Sitting in my house and heard and felt the house move
  • oxford - the whole room shook. felt by everybody in the apartment.
  • Camerton - Light shaking
  • barnstaple - shaking lasted maybe 5 seconds - no apparent damage but things looked as if they would fall off shelves etc
  • Worcestershire - Light shaking for about 2 minutes.
  • Bridgend - 5 seconds, rumbling and wall and shelf ornaments vibrating. No damage.
  • Greasby - Sitting in armchair, felt slight shaking for about 10 seconds
  • Blackwood - Weak shaking
  • Abingdon - 2-3 seconds
  • Cardiff - no damage about 5 seconds the room/house shook. mug on table edged towards the edge a little
  • Birmingham - Maybe 5 seconds? Shaking/tremor in a high rise block. It shook then almost stopped then shook again. I would\'ve taken no notice of the first tremor but it went on a bit!
  • Llandovery - Prolonged rumbling (like loud low-flying aircraft), and one sudden jerk.
  • Bristol - Cerca de 4 segundos
  • Birmingham - Light shaking
  • Port Talbot - 2 small tremors
  • Port Talbot - 2 small tremors
  • Market Drayton - Couple of seconds, house felt like it wobbled.
  • swansea - No damge. Setee moved, floor shook.
  • Portishead - Very quick tremor almost like a single impact.
  • Tiverton - Felt bed shaking about 15mins ago
  • BARRY - Light shaking
  • Moretonhampstead Devon - Heard distant boom. Though was that an explosion. Then felt something coming this way a few seconds later. Got increasingly violent with table rocking etc. then eased off again. Shaking lasted maybe 5 seconds.
  • Llandrindod Wells - The shaking lasted about 3 seconds.
  • Llandovery - Low, steady rumbling with shaking and upward movement of floor for 5-10 seconds
  • Aberdare - I was sitting at my computer and I felt the \"shake\" - the things on myself shook I was shaken, sitting on my chair, I heard a rumble, and when I went outside, my neighbours were out too, and said it had been felt about 2 miles away in Aberaman. I\'ve never felt anything like that before.
  • Worcestershire - About 2.30. House was shaking.
  • Rhandirmwyn - Heard rumbling as if a helicopter was starting to descend from overhead. Movement lasted about 5 seconds.
  • Swansea - 5 seconds
  • Stourbridge - No damage but felt House move sideways. 2 second rumble
  • Newport - Light shaking
  • Caerphilly - Weak shaking
  • Bromborough - House shaked and windows made noise
  • Abergavenny - Plates and glassware in the dresser rattled
  • WREXHAM - Light shaking
  • Birmingham - Chair wobbling 10 secs
  • Bedstone - 30 seconds of shaking at about 2:30
  • Aberdare - Two strong tremors. Was quite a shock.
  • Reading - Weak shaking
  • Drefach Velindre - Light shaking
  • CHIPPENHAM - Moderate shaking but just for a few seconds
  • Tonypandy - Heard a boom and doors & settee shook. Around 2:30pm
  • Swindon - Felt like the house was wobbling, things fell over
  • Port Talbot - Loud very deep rumbles, and sofa moved. Not a normal earthquake zone, felt like a lorry hit the house.
  • Port Talbot - Playing my ps4 and my bed shook and my dog is hiding on the table
  • BRIDGEND - Lasted around 5 secs sat at kitchen table.. vase of flowers shaking
  • Gloucestershire - Light shaking
  • Rhiwbina, Cardiff - ? Maybe 7 seconds
  • ROWLEY REGIS - Lasted around 3-5 seconds
  • Cardiff - Lasted 5 second s everything shook the entire House shook
  • Abercynon - Approx 30 seconds. Felt like I was on a train. Sofa moved
  • Carmarthen - Everything in the house started shaking with some things falling
  • Swansea - 5 seconds of shaking. Everything shook.
  • Wrexham - My house shook a few times 2.31 pm sat 17th Feb 2018
  • CARDIFF - At about 14:30 I was sat on my bed watching the Olympics, when I felt this strong shaking, which lasted about 20seconds.
  • Yeovil - Lasted 5 seconds. Wardrobes and furniture shaking.
  • maesteg - shaking lasted what felt like 1 min but was probably no more than 30secs. there was some noise and buildings were shaken. all the neighbours were out in the street, feeling very nervous. no apparent damage done.
  • Bath - Bed shook for a few seconds
  • Bath - Bed shook for a few seconds
  • Swansea - Windows rattling TV shaking on stand whole house shaking started with a rumbling noise and lasted a few seconds
  • Newcastle Emlyn - 5 second rumble
  • Rhigos - Moderate shaking
  • Rhigos - Moderate shaking
  • Cynwyd - Very weak shaking
  • Redditch - House shook, doors and windows knocking
  • Rhondda - No property damage. House was shaking.
  • Rhondda - No property damage. House was shaking.
  • Aberdare - Me and family members were in my living room and i was talking about miving home all of a sudden the building shook and you could hear it and my fyrniture lamps was rattling 1st of all i thought something had crashed into side of building as im in top flat 3 storeis up but then realised it was actually an earthquake. Very scary
  • Cardiff - I was in a house and then I head a and then I shat myself.
  • Pontypridd - Light shaking
  • Ystradgynlais - Light shaking
  • Birmingham - Light shaking
  • swansea - Moderate shaking
  • Cardiff - Very weak shaking
  • Brecon - 5 seconds no damage just whole house shook
  • Bath - We had one shake for a couple of seconds then another few minutes after
  • Bristol - Shaking lasted for about 5 seconds.
  • Evesham - Weak shaking
  • Swansea - House shook fairly violently 3 times No damage
  • Dolgellau - Rumbling heard for 4 -5 seconds followed by a heavy \"thud\" with more rumbling for a further 4 -5 sec.
  • Colwyn Bay - One brief tremor - sitting in armchair when room, including TV, shook briefly. Heard nothing.
  • Bristol - sat on sofa and it began to sjhake for a few seconds a rumbling sound.
  • West Midlands - Felt like house wobbled
  • Bristol - The windows creaked as if being buffeted by a strong gust of wind and the sofa jolted (as if an animal had jumped on it). It was one jolt lasting for one second. There does not appear to be any damage.
  • Swansea - My stuff started falling from my table and my hose was shaking
  • Chideock, Dorset - Shaking for only a second or so, very weak but disturbed jars above kitchen mantle.
  • Cardiff - Laying on sofa with my 2 year old due not feel unwell. And the sofa shook, I thought it was my husband coming through the door. My daughter jumped off the sofa to see him, leaving me to still feel the sofa shake. 10 mins later husband walked in- so it definitely wasn\'t him
  • Swansea - Shook the house for about 3-4 seconds. I thought a car had driven into the house, or a tree had fallen. No damage. Nothing fell
  • Kidwelly - Weak shaking
  • Swansea - Shook the house for about 3-4 seconds. I thought a car had driven into the house, or a tree had fallen. No damage. Nothing fell
  • Tonyrefail - House movement felt for 1 - 1.5 seconds. Other people in neighbourhood also felt movement . No obvious damage.
  • Pencoed - No damage just a strange feeling
  • Pencoed - No damage just a strange feeling
  • Swindon - 5 seconds. Sofa juddered twice.
  • Llangyfelach - Moderate shaking
  • Cardiff - Very weak shaking
  • Llangyfelach - Moderate shaking
  • Old Colwyn - I was sat watching Channel 4, felt the entire room I was in shake, saw the light fixture shake, and then it stopped. Only lasted about a second. No damage done.
  • Swansea valley - Strong shaking
  • Ringwood - Lasted all of 5 seconds but my entire flat was shaking
  • Jersey marine - Loud rumble for few seconds slight vibration
  • Bridport - A few seconds nothing damaged
  • Peasedown St John - 4 seconds no damage
  • Swansea - Moderate shaking
  • Maesteg - The House felt like it was moving around me a very sereal feeling like nothing before x
  • Pontypool - No damage - shaking lasted for 10s or so - dozens of residents confirm on our neighbourhood Facebook group.
  • Swansea - House shook , for a second or two, no discernible damage so far.
  • Monmouthshire - Weak shaking
  • Swansea - The whole street shock
  • Devon - Light shaking
  • Cwmparc - The whole house dropped then went side to side. Lasted seconds. My son fell off his bed. A few things moved in the house. No damage.
  • Ammanford - Strong shaking for 3 to 5 seconds, sounded like a truck had crashed into my house. No apparent damage
  • Ebbw Vale - I am in a 2 storey office black and the whole building shook - I thought at fist a heavy vehicle had crashed into the building but have just heard of others reporting this feeling in the vicinity also.
  • Neath - Sounded like a train passing, with an impact that shook the house.
  • Swansea - Lasted around 10 seconds, built up and eventually shook enough to knock things off my side, followed by very light movement.
  • Neath - No damage so far. 20 seconds give or take..
  • Swindon - Shaking lasted about 5-6 seconds, kingside bed shook and kitchen table and chairs shook quite violently
  • Swindon - Shaking lasted about 5-6 seconds, kingside bed shook and kitchen table and chairs shook quite violently
  • Newport - No damage and lasted about 2-3 seconds
  • Gloucestershire - Light shaking
  • Neath - Strong shaking
  • Swansea - 2 separate shakes lasting a couple of seconds each.
  • Barry - Only lasted a few seconds, my sofa moved and the windows were shaking.
  • SWANSEA - I felt like the house shifted, felt like it had been jolted forward. Very frightening experience
  • Kingswinford - Just after 2.30pm - a few seconds of ‘bouncing’ felt on floor and sofa where i was sitting
  • Swansea - Light shaking
  • Blackwood - Sofa shock, walls bounced and heard a thud. Really frightening.
  • South wales - House shook loud bang we thought something had crashed into the house!
  • Swansea - Light shaking
  • Swansea - About 3 seconds. It moved the bed a little.
  • Swansea - Lasted 5-6 seconds, whole house was shaken, saw the trees sway.
  • Cardiff - Shaking lasted approximately 5-10 seconds, some furniture moved, no damage.
  • Bath - Not long maybe 4 seconds. NO noticeable damage. Rocking action
  • Yeovil - Light shaking
  • Cardiff - It lasted 5 or 10 seconds and I literally felt the ground shake and saw the whiteboard that I was looking at move. Didn’t even know it was an earthquake until later.
  • Aberdare - Weak shaking
  • Bath - 2 seconds, buildings shaking
  • barnstaple - 2 lots of shaking about 5 seconds each. pictures and things on shelves shook.
  • Blackwood - 1 to 2 seconds 2 tremors
  • Tiverton, Devon - Sat inside about 2.35, felt rumbling then the doors and windows all shook and rattled, Light fittings swung. Lasted about 4/5 seconds.
  • swansea - top floor of highrise,11th floor.the strand .,everything was shaking for around 5 seconds...
  • Swansea - Weak shaking
  • Kidderminster - Chandelier droplets swung. Tray propped up on kitchen worktop fell over.
  • Cheltenham - Very weak shaking
  • Swansea - Chair I was sitting in shook, glassses in the kitchen cupboard shaking for about 3 seconds
  • Cardiff - Was literally for 3 seconds, thought the house was going to collapse
  • Wrexham - I experienced a small shake whilst sitting on the sofa at home, it lasted only a few seconds.
  • Northwich - Weak shaking
  • Greasby - 10 seconds no damage
  • Swansea - Shook the University building 3-4 times quite strongly - moved my chair a few inches side to side.
  • Swansea - I live in a basement floor flat and it felt like something had gone through the top floor flat the way it shook. I also assumed my boy was messing round with doors or something?? Scary..
  • Gloucester - It felt like heavy wind or a car hitting the house. No damage seen.
  • Ammanford carmarthshire - The shaking lasted for 3 seconds, our whole house shook
  • Msrgam - At around while I was on the first floor of my home the roof shuddered noisily as if it was going to collapse, No signs of damage visible,
  • Mold - House wobbled for a few seconds. Long enough to realise it was an earthquake. Felt like someone had driven into the house. No damage.
  • St Davids - It recorded a 4.2 in Neath. Sounded like a heavy lorry going through the farmyard. SA62 6RS
  • PLYMOUTH - I was on the fifth floor and it felt like a jolt more than shaking so it only lasted a moment.
  • Oxwich - Moderate shaking
  • Barnstaple - 2 or 3 seconds rumbling, 'grating' stress sounds from building (brick/cement walls). Lying on sofa, felt jolt as if pushed/raised slightly.
  • Swansea - About 5 seconds...whole house shook and ornament fell off unit
  • Swansea - At about 2.40pm my wardrobe and bed shook. There was a loud noise which I felt rather than heard, if that makes sense! Downstairs the coffee table shook, along with the sofa which also moved, with my sister on it!
  • Gwaun Cae Gurwen - Lasted about 6/7 seconds and was quite strong
  • SA9 1YX - Rumbling Sofa shook Dog was barking
  • Swansea - Strong shaking
  • Glanamman - 4 seconds of rumbles and plate rattling.
  • Swansea - I was in the WWI section of the Waterfront Museum. A rumble or like a distant explosion was heard. The wooden floor moved from side to side, the ceiling and walls swayed and objects and displays shook. There are sound effects of WWI in the exhibition and one man turned to me to exclaim that the effects were "pretty realistic"
  • Bristol - It was a brief quake. I am in a 3rd floor flat and the room shook for a couple of seconds; the chair I was sitting on juddered like it was being jerked to the left. There were after vibrations going on in my storage heater for several seconds. No damage I have seen yet.
  • Swansea - Thought it was construction in a university building when the floor shook and the projectors went crazy
  • Plymouth - Walls were shaking for around 5 secs
  • Barry - It was at 14:30 hours -local time & lasted 2-3 seconds. The light fittings, floor and side lamps shook but everything stayed upright. I\'m on the 3rd floor up, so may have felt it more than others. Just very odd, never experienced anything like it before.
  • Reading - Duration roughly 10s.
  • Wiltshire - I was in my room when there was a sudden shake. All of my furniture started shaking. It only lasted for approximately 15 seconds. No one was harmed and there was no damage but it was the scariest 15 seconds of my life.
  • Swansea - Shaking,loud bang,crows took flight.About5 seconds.
  • brecon - Ceilings flexed
  • Lincombe Lee - 10 seconds @ 2.30p.m. Saturday 17th February 2018
  • Risca - Lasted about 10 seconds. Items rattling audibly but no damage.
  • Portskewett - Cabinets rattling and dog behaving unusually & barking. Lasted a few seconds.
  • Skewen - Whole house shock 15sec massive bang static shock when I went to open the door
  • Pentrecagal - Moderate shaking
  • Swansea - What a scare! I'm in a top floor flat and thought a lorry hit the building or a bomb exploded. A loud bang and rumble. Everything shook and rattled for about 5 seconds. Everyone went outside to look for a cause and all pets were alarmed.
  • Pontlliw - Heard huge rumbling noise and the walls started shaking. The dog was barking. Lasted around 6 seconds
  • Chiselborough, Somerset - Short tremor no damage
  • Pembrokeshire - Sounded like local firing range was working overtime
  • Swansea - Felt like a lorry hit the house
  • Llanfynydd - Light shaking
  • pontarddulais, swansea - lasted approx 3 seconds, a big bang, then it shook the whole house, scared as i thought there was a explosion near by.
  • Cardiff - I experienced the earthquake around 2:30 and my whole house was shaking, I was lying down on the bed and suddenly my bed also started to shake and I was also shaking because my bed was moving so much. It lasted around 10-20 seconds. So not very long but I was very shocked. Though nothing was damaged and everyone was well.
  • Near Myddfai - Felt as if something had collided with the house. Cups continued to rattle in the kitchen cupboard 20 or so seconds after the main bang.
  • Malpas, Truro - Shaking lasted about 5 seconds and shook the settee I was sat on and the flowers in a vase on the sideboard shook from side to side. The floor also felt as though it was shaking and there was a rumbling noise.
  • Pontypool - For about 10 seconds the whole house shook
  • Braunton - doors and windows rattled, vibrations onthe sofa like being in large truck starting, 5-10 second duration
  • Gillingham, Dorset - Back of chair shook for a second or two, thought something must have fallen of a cupboard, but nothing had moved.
  • Wells - Weak shaking
  • CAMBRIDGE - It felt like the floor has moved, shook under my feet it lasted only a second or 2. Last night. We live at the 2nd floor.
  • Wolverhampton - Moderate shaking
  • Munslow - Split second bang that sounded like a thump upstairs but was also felt under my feet where we were downstairs. Disnt think much of it until reporred on the news.
  • Sidmouth - 2-3 seconds of glass doors in a bookcase mildly rattling. Noted because it was unusual, however dismissed at the time. Later heard of the Swansea earthquake and checked the time - fits precisely!
  • Newport - Sat down sofa and ground weak tremble no pictures fallen down no cracks to walls.
  • Brecon - 4 seconds floor was shaking from underneath me could see the blinds and feel the house shaking
  • Lyme Regis, dorset - Sat on sofa felt sofa shaking was odd at the time but on hearing of earthquake in Swansea time fits.
  • rhiwbina cardiff South Wales - Light shaking
  • Oxford - Maybe 2-3 seconds, noticeable on the top floor of my building.
  • Swansea - Weak shaking of furniture for about 2/3seconds. No damage
  • Bridgend - 5 seconds. No property damage. House shook with a rumbling sound.
  • Hay-on-Wye - Felt like passing heavy vehicle but none seen so presumed was an earthquake. Working at computer, floor, table and computer screen shook. Noticed for around 3 seconds.
  • Bristol - It happened around 2:15pm GMT, it lasted for around 30 seconds, not long but I felt my room shake lightly. I think it was measured around 4.4. It is extremely rare to even have a tremor like we experienced today. No damage to property.
  • Exeter - I was in bed and it shuddered for several seconds. Not aware of any property damage.
  • Pontypool - The sofa shock and mirror rattled on wall
  • Farmborough - Of a party of 6 only one noticed the movement and did not bother to mention it. Then received a concerned phone call from a relative in Staple Hill Bristol where the shake had been obvious. No obvious damage at either location.
  • Neath - 10-20secs where the noise was like heavy vehicle approaching & then a ripple effect felt through the floor and window blinds shook.
  • Swansea - Third floor flat. Felt shaking, heard rumbling and ornaments were rattling. Then heard a loud bang and it felt like I was jolted forward in my chair. Looked out of the window at the sea and the horizon seemed to move when there was another strong jolt (could have been me moving with the building). Loud cracking noise in corner of the room and noticed later that there is about a crack in the plaster. Whole thing seemed to last about 10 seconds.
  • Portishead - Felt the pub wall rattle and bang against the chair I was sat on, was so quick , over in 4-5 seconds
  • pontyberem - Sat 17th Feb '18. Heard rumbling, got louder like a lorry or similar was coming straight into house. Glass cabinet was shaking & sofa I was sat on. Approx 10-20 seconds?
  • Sidmouth - Felt weak shaking, lasted about 3 seconds.
  • Cotmaton Road, Sidmouth, EX10 8ST - Sidmouth East Devon. Our roof timbers creaked for about 10 seconds. No damage just a strange experience.
  • CORSHAM - Shaking about 5 seconds. Sofa moving and water in bottle shock. Dogs sat up. No property damage.
  • USGS Clydach, United Kingdom Feb 17 14:31 4.2 11 MAP
    EMSC Wales-england Region, U.k. Feb 17 14:31 4.7 10 MAP
  • Portishead - Lasted approx. 5 secs whole house shook ornaments vibrated settee wobbled
  • Higher Kinnerton - Sofa shook for 1 or 2 seconds
  • Neath - Light shaking
  • Swansea - Loud rumble heard, house shook for about 5 seconds, then a jolt and all stopped
  • Three Crosses, Swansea - Heard a loud bang and the house shook. The living room door opened. It felt like an underground explosion but the air moved as like a shock wave. All the neighbours out wondering what the noise was. Lasted 5-8 seconds.
  • Merthyr Tydfil - 5 seconds of shaking, enough to shake full house.
  • gorseinon swansea - Moderate shaking
  • nelson - Did not feel it but saw water moving in a bubble/light long water tube that was on a shelf on the wall in my room.lasted about 30 seconds.
  • Sidmouth - 2-3 seconds of glass doors in a bookcase mildly rattling. Noted because it was unusual, however dismissed at the time. Later heard of the Swansea earthquake and checked the time - fits precisely!
  • Shrewsbury - The shaking woke me up. It lasted a few seconds




    Other earthquakes in the greater epicenter area

    Strongest earthquakes (since 1900) within a 150 km radius from this earthquake

    Screen Shot 2018-02-12 at 18.31.30

    I felt the shaking *
    Country where you felt the earthquake *
    City/Village where you felt the earthquake *
    Street or suburb (area) where you felt the earthquake
    Latitude (area) where you felt the earthquake
    Longitude (area) where you felt the earthquake
    Shaking Strength *
    MMI II (Very weak shaking) ?
    People :
    Felt by persons at rest, on upper floors or favorably placed.
    MMI III (Weak shaking) ?
    People :
    Felt indoors; hanging objects may swing, vibration similar to passing of light trucks, duration may be estimated, may not be recognized as an earthquake.
    MMI IV (Light shaking) ?
    People :
    Generally noticed indoors but not outside. Light sleepers may be awakened. Vibration may be likened to the passing of heavy traffic, or to the jolt of a heavy object falling or striking the building.
    Fittings :
    Doors and windows rattle. Glassware and crockery rattle. Liquids in open vessels may be slightly disturbed. Standing motorcars may rock.
    Structures :
    Walls and frames of buildings, and partitions and suspended ceilings in commercial buildings, may be heard to creak.
    MMI V (Moderate shaking) ?
    People :
    Generally felt outside, and by almost everyone indoors. Most sleepers awakened. A few people alarmed.
    Fittings :
    Small unstable objects are displaced or upset. Some glassware and crockery may be broken. Hanging pictures knock against the wall. Open doors may swing. Cupboard doors secured by magnetic catches may open. Pendulum clocks stop, start, or change rate.
    Structures :
    Some large display windows cracked. A few earthenware toilet fixtures cracked.
    MMI VI (Strong shaking) ?
    People Felt by all. People and animals alarmed. Many run outside. Difficulty experienced in walking steadily.
    Fittings :
    Objects fall from shelves. Pictures fall from walls. Some furniture moved on smooth floors, some unsecured free-standing fireplaces moved. Glassware and crockery broken. Very unstable furniture overturned. Small church and school bells ring. Appliances move on bench or table tops. Filing cabinets or "easy glide" drawers may open (or shut).
    Structures :
    Slight damage to buildings with low standard. Some stucco or cement plaster falls. Large display windows broken. Damage to a few weak domestic chimneys, some may fall.
    Environment :
    Trees and bushes shake, or are heard to rustle. Loose material may be dislodged from sloping ground, e.g. existing slides, talus slopes, shingle slides.
    MMI VII (Very strong shaking) ?
    General alarm. Difficulty experienced in standing. Noticed by motorcar drivers who may stop.
    Fittings :
    Large bells ring. Furniture moves on smooth floors, may move on carpeted floors. Substantial damage to fragile contents of buildings.
    Structures :
    Unreinforced stone and brick walls cracked. Low standard buildings cracked with some minor masonry falls. A few instances of damage to buildings of ordinary workmanship. Unbraced parapets, unbraced brick gables, and architectural ornaments fall. Roofing tiles, especially ridge tiles may be dislodged. Many unreinforced domestic chimneys damaged, often falling from roof-line. Water tanks Type I burst. A few instances of damage to brick veneers and plaster or cement-based linings. Unrestrained water cylinders (hot-water cylinders) may move and leak. Some common windows cracked. Suspended ceilings damaged.
    Environment :
    Water made turbid by stirred up mud. Small slides such as falls of sand and gravel banks, and small rock-falls from steep slopes and cuttings. Instances of settlement of unconsolidated or wet, or weak soils. Some fine cracks appear in sloping ground. A few instances of liquefaction (i.e. small water and sand ejections).
    MMI VIII (Severe shaking) ?
    People Alarm may approach panic. Steering of motorcars greatly affected. Structures : Low standard buildings heavily damaged, some collapse. ordinary workmanship buildings damaged, some with partial collapse. Reinforced masonry or concrete buildings damaged in some cases. A few instances of damage to buildings and bridges designed and built to resist earthquakes. Monuments and pre-1976 elevated tanks and factory stacks twisted or brought down. Some pre-1965 infill masonry panels damaged. A few post-1980 brick veneers damaged. Decayed timber piles of houses damaged. Houses not secured to foundations may move. Most unreinforced domestic chimneys damaged, some below roof-line, many brought down. Environment : Cracks appear on steep slopes and in wet ground. Small to moderate slides in roadside cuttings and unsupported excavations. Small water and sand ejections and localized lateral spreading adjacent to streams, canals, lakes, etc.
    MMI IX (Violent shaking) ?
    Structures Many low standard buildings destroyed. Ordinary workmanship buildings heavily damaged, some collapse. Reinforced masonry or concrete buildings damaged, some with partial collapse. Buildings and bridges designed and built to resist earthquakes damaged in some cases, some with flexible frames seriously damaged. Damage or permanent distortion to some buildings and bridges, designed and built to normal use standards. Houses not secured to foundations shifted off. Brick veneers fall and expose frames. Environment : Cracking of ground conspicuous. Landsliding general on steep slopes. Liquefaction effects intensified and more widespread, with large lateral spreading and flow sliding adjacent to streams, canals, lakes, etc.
    Tell us your experience and how many seconds the shaking lasted + let us know if your property has been damaged (even slight damage). (max. 500 characters)
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