Earthquake near Pohang, South Korea injures 40 people, 413 people displaced - February 10, 2018

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Damage report in cooperation with the 2018 Earthquake Impact Database

Update February 13, 18:43 UTC: New damage numbers
** 40 people injured
** 413 people displaced
** 181 houses/buildings damaged


Update 09:21 UTC: at least 36 people were injured and 119 houses/constructions were damaged during this earthquake.

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Update  :  The Pohang Fire department has received 119 calls for help so far. 2 people have bee, hospitalized

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Update : Seismogram as recorded in a seismological station in Incheon

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Update : report from a Korean TV station

Update : Most of the I FELT IT reports we have received are varying from Light to Moderate shaking

Update :  The Focal Mechanism shows a merely thrust mechanism
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Update : Although below M5, we consider this earthquake dangerous for damage due to the shallow depth.

Update : 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 : 4.9

Local Time (conversion only below land) : 2018-02-11 05:03:03

GMT/UTC Time : 2018-02-10 20:03:03

Depth (Hypocenter) : 10 km

Depth and Magnitude updates in the list below.

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SRC Location UTC Date/time M D INFO
USGS Hoko, South Korea Feb 10 20:03 4.7 10 MAP
  • Pohang - Woke me up at 5:04am local time. shaking lasted about 5 seconds. No damage to my building that I know of except some posters knocked off my walls. I live third floor of a four floor apartment.
  • Busan - It woke me up and I felt the shaking last a few seconds m ore.
  • Pohang - It felt around 15 seconds. No visible damage in apartment unit, but my bed was definitely shaking vigorously during the earthquake. I was awake the entire time.
  • Daegu - Moderate shaking
  • Pohang - Shook us awake and books fell off the shelves. Another long, noisy quake in a week of shaking
  • Pohang - I was asleep but the shaking was strong enough to wake me up . The bed was definitely moving
  • Pohang - Strong shaking
  • Pohang - Moderate shaking
  • Pohang - Woke me and my two kids up. Very severe shaking for about ten seconds. No visible damage but several objects did fall off cabinets.
  • Daegu - I was asleep and thought I was dreaming at first. My bed was shaking softly and my window started to rumble/vibrate.Then my neighbors dog started barking and I realized it was not a dream and I jumped up. It was around 5am on Sunday morning.
  • Camp Mujuk - I heard what sounded like a loud explosion and shaking that awoken me. Shaking pretty hard. No damage to our barracks. No other damage noted.
  • Bukbu pohang - Slight rumbling.
  • GEOFON South Korea Feb 10 20:03 4.7 10 MAP
    EMSC South Korea Feb 10 20:03 4.9 10 MAP I Felt It INFO
  • Daegu - Was in bed half asleep. Now wide awake.
  • Camp Mujuk - It shook for about 6 seconds
  • Seoul - Very weak shaking
  • Jinju - It woke me up, I was asleep. No damage, must have been very light shaking.
  • Jinhae, Busan - Slight shaking, lasting for a minute or less.
  • Pyeongtaeksi - Lasted about 5 seconds i noticed my bed was shaking as if i was on the top bunk of a bunk bed and someone else was getting in shaking the bed. So a light sway it was more like. No property damage.
  • Seoul - Bed started shaking around 5:09 am. Lasted about 3 seconds but it was definitely noticeable.
  • Cheonan - Shaking woke me up. Suspicion confirmed a few minutes later when I received emergency alert
  • Daejeon - Light shaking
  • Gimcheon - Woke me up, thought I was dreaming it at first but the bed kept shaking
  • Gyeongju - Typically a heavy sleeper. Had a flash in a dream oddly about an earthquake and woke up instantly to my bed shaking and hearing a rumble for a few more seconds.
  • Daegu - High rise building by mountain range Felt sustained shudder through the building
  • Pohang - Shaking woke me up. Definitely frightened for a few minutes afterward. Nothing fell off shelves/walls.
  • Daegu - Woke me up out of a dead sleep. The whole bldg was shaking for a few seconds. My clock is fast and said 5am, probably more like 5:04am
  • Pohang - Shaking lasted about 5 or 6 seconds. The entire 4 story building was shaking and you could hear everything on the shelves shaking loudly. There was no damage done to my apartment. When the earthquake was finished you could hear that everyone had woken up and were either talking or drove away to I’m guessing a safer area.




    Other earthquakes in the greater epicenter area

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


    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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