(Major) Earthquakes list April 13, 2012 – 2 moderate aftershocks in Oaxaca / Guerrero, Mexico

Last update: April 13, 2012 at 11:06 pm by By

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2 serious aftershocks in Guerrero / Oaxaca, Mexico
As predicted several weeks ago, the M7.6 earthquake in Guerrero Mexico would surely lead to a lot of aftershocks including some stronger ones which will be close or greater than M6.0. What happened today (M5.4 at 10:10 UTC and M5.3 at 13:06 UTC) could be expected and will normally not cause any additional damage. Let us hope that the aftershocks will gradually winding down in strength and number. Read also our in-depth report on the M7.4 mainshock

M 5.9      2012/04/13 10:10     Depth 20.0 km      NEAR THE EAST COAST OF HONSHU, JAPAN
07:10:01 PM at epicenter – Epicenter location see below in list
Similar earthquake than yesterday in the greater Fukushima area. Although the Magnitude and depth are pointing to a very powerful earthquake, the intensity was at the lower side with a max. JMA 4 (on a scale from 0 to 7). Earthquake-Report.com considers a 5+ as being potentially dangerous for infrastructure and injuries. The shaking was modest because the epicenter was out of the coast.
39 km (24 miles) E of Iwaki, Honshu, Japan

M 4.7      2012/04/13 06:21      Depth 26.8 km      SICILY, ITALY
08:21:36 AM at epicenter –  - Epicenter location see below in list
Moderate earthquake very close to Palermo, Sicily. The depth of the hypocenter will weaken the shaking a little bit and no damage has to be expected in or near Palermo.
12 km (8 miles) NNW (337°) from Palermo, Sicily, Italy

Label info : M = magnitude, D = depth (km), Time = UTC – Click here for conversion in your local time.

SRC Location UTC Date/time M D INFORMATION
EMSC Off W Coast Of Northern Sumatra Apr 13 20:00 PM 4.7 8 MAP I Felt It
USGS North Indian Ocean Apr 13 19:52 PM 4.7 16 MAP I Felt It
EMSC North Indian Ocean Apr 13 19:52 PM 4.8 12 MAP I Felt It
EMSC Southern Sumatra, Indonesia Apr 13 19:35 PM 4.8 66 MAP I Felt It
USGS Southern Sumatra, Indonesia Apr 13 19:35 PM 4.7 64 MAP I Felt It
GEOFON Fiji Islands Region Apr 13 16:42 PM 4.8 502 MAP I Felt It
USGS Fiji Region Apr 13 16:42 PM 4.8 488 MAP I Felt It
EMSC Fiji Region Apr 13 16:42 PM 4.9 420 MAP I Felt It
EMSC Near East Coast Of Honshu, Japan Apr 13 15:54 PM 4.7 10 MAP I Felt It
EMSC North Indian Ocean Apr 13 15:33 PM 4.7 10 MAP I Felt It
GEOFON Near Coast Of Guerrero, Mexico Apr 13 13:06 PM 4.9 10 MAP I Felt It
EMSC Oaxaca, Mexico Apr 13 13:06 PM 5.1 10 MAP I Felt It
USGS Oaxaca, Mexico Apr 13 13:06 PM 5.3 14 MAP I Felt It
EMSC North Indian Ocean Apr 13 12:48 PM 4.8 15 MAP I Felt It
USGS North Indian Ocean Apr 13 12:48 PM 4.8 15 MAP I Felt It
GEOFON North Indian Ocean Apr 13 12:48 PM 4.9 10 MAP I Felt It
EMSC Near East Coast Of Honshu, Japan Apr 13 12:12 PM 5.0 30 MAP I Felt It
USGS Near The East Coast Of Honshu, Japan Apr 13 12:12 PM 5.0 35 MAP I Felt It
GEOFON Near East Coast Of Honshu, Japan Apr 13 12:12 PM 4.9 10 MAP I Felt It
GEOFON Off West Coast Of Northern Sumatra Apr 13 12:03 PM 4.9 10 MAP I Felt It
GEOFON Off West Coast Of Northern Sumatra Apr 13 11:43 AM 4.7 10 MAP I Felt It
EMSC North Indian Ocean Apr 13 11:43 AM 4.8 10 MAP I Felt It
USGS North Indian Ocean Apr 13 11:43 AM 4.7 11 MAP I Felt It
EMSC Oaxaca, Mexico Apr 13 10:10 AM 5.7 10 MAP I Felt It
GEOFON Near Coast Of Guerrero, Mexico Apr 13 10:10 AM 5.4 10 MAP I Felt It
USGS Oaxaca, Mexico Apr 13 10:10 AM 5.4 10 MAP I Felt It
GEOFON Near East Coast Of Honshu, Japan Apr 13 10:10 AM 5.7 14 MAP I Felt It
EMSC Near East Coast Of Honshu, Japan Apr 13 10:10 AM 5.8 10 MAP I Felt It
USGS Near The East Coast Of Honshu, Japan Apr 13 10:10 AM 5.7 8 MAP I Felt It
GEOFON North Indian Ocean Apr 13 07:41 AM 4.7 10 MAP I Felt It
EMSC North Indian Ocean Apr 13 07:41 AM 4.7 10 MAP I Felt It
USGS Sicily, Italy Apr 13 06:21 AM 4.7 26 MAP I Felt It
  • Palermo, Italy - It was strong enough that it woke me from sleeping. The host of my hostel did not feel it.
  • Palermo's university - Moderate shaking indicated
  • Palermo - è sempre una brutta esperienza essere svegliati da un terremoto (source EMSC)
  • Trapani - svegliato dal terremoto.... e che cavolo :-) (source EMSC)
  • Trapani - Dormivo. Mi sono svegliata per il rumore dei ninnoli del lampadario che sbattevano tra loro e perché tremav il letto sotto di me (source EMSC)
  • Palermo - Ero all’ultimo piano della facoltà di architettura…..e la sedia ballava parecchio…!!
  • Palermo - En attente à l'aéroport de Palerme pour un retour en avion vers la France, lorsque qu'un tremblement a été perçu par l'ensemble des personnes présentes. On aurai crus qu'un avion s'était écrasé sur la piste.
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    EMSC Sicily, Italy Apr 13 06:21 AM 4.7 20 MAP I Felt It
    EMSC Maule, Chile Apr 13 06:13 AM 4.7 40 MAP I Felt It
    USGS Maule, Chile Apr 13 06:13 AM 4.7 40 MAP I Felt It
    EMSC North Indian Ocean Apr 13 05:31 AM 5.0 30 MAP I Felt It
    USGS North Indian Ocean Apr 13 05:31 AM 4.9 17 MAP I Felt It
    USGS North Indian Ocean Apr 13 04:49 AM 4.8 15 MAP I Felt It
    GEOFON Off West Coast Of Northern Sumatra Apr 13 04:49 AM 4.7 10 MAP I Felt It
    EMSC North Indian Ocean Apr 13 04:49 AM 4.8 2 MAP I Felt It
    GEOFON Vanuatu Islands Apr 13 04:15 AM 4.8 56 MAP I Felt It
    EMSC Vanuatu Apr 13 04:15 AM 4.9 60 MAP I Felt It
    USGS Vanuatu Apr 13 04:15 AM 5.0 46 MAP I Felt It
    EMSC Off W Coast Of Northern Sumatra Apr 13 03:38 AM 4.7 30 MAP I Felt It
    GEOFON Off West Coast Of Northern Sumatra Apr 13 03:38 AM 4.8 10 MAP I Felt It
    GEOFON Off West Coast Of Northern Sumatra Apr 13 03:17 AM 4.8 10 MAP I Felt It

    Data sources courtesy : USGS – EMSC – GFZ – GEONET

    Earthquakes occurred yesterday (UTC time), but today local time

    Sumatra Indonesia : the sea floor is still continuously hit by aftershocks who are getting less powerful niy by bit. Some very strong ones may still occur.

    seismograph - recordingUseful information to read this daily earthquake list
    This earthquake list covers important earthquakes in the world.
    If a more detailed page is present, the earthquake line will be linked to the detailed page.
    For your comfort, we will provide in most cases a Google Satellite Map to give you an idea where the earthquake struck, which terrain it happened and if villages or cities are located in the immediate vicinity. The multi-source approach has been setup to compare values as seismology is not an exact science and needs a lot of calculations. The reference for the time zone is UTC (Coordinated Universal Time, also called GMT). Color explanation if we add some details above the list :
    green color = NOT dangerous for damage or injuries
    orange color = MODERATE risk for damage or injuries
    red color = CONSIDERABLE risk for damage or injuries

    QuakeSOS+ and QuakeSOS free are iPhone applications developed by Armand Vervaeck, the founder of Earthquake Report. The Application simplifies immediate group communication to friends and family members (with your exact GPS location) and is feeding the users with Earthquake Report news. The 0.99 US$ QuakeSOS+ version will support the activities of SOS Earthquakes.

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    I have felt it – Ik heb het gevoeld – Το έκανα αισθάνεται – Yo lo he sentido – 我的确感到了 – 私はそれを感じていました- Ich habe es gefühlt – Bunu hissediyorum yaptı – لم أشعر أنه

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    City/Village where you felt the earthquake
    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) ?
    People
    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.
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