Very Strong earthquake – Hokkaido, Japan Region on February 2, 2013

Last update: February 2, 2013 at 3:23 pm by By

Most important Earthquake Data:

Magnitude (first reported value) : 6.9

GMT Time : 2013-02-02 14:17:34 +0000 UTC

Depth (Hypocenter)  (first reported value) : 103.1 km

Source: USGS

Depth and Magnitude updates in the list below.

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SRC Location UTC Date/time M D INFO
PTWC Hokkaido Japan Region Feb 02 14:27 6.8 126 MAP I Felt It INFO
WCATWC Hokkaido Japan Region Feb 02 14:18 6.9 124 MAP I Felt It INFO
  • Hokkaido - in the 8th floor of tower 2
  • Yokohama - My apartment building shook in Yokohama at this time.
  • toyko - bed & tv rocked etc, building moving
  • misawa - OMJebus earthquake
  • niseko - Felt it on 2nd floor in concrete building. Swaying of bed
  • Tokyo Hanzomon - 9th floor in a bulding, weak shaking for 3 seconds, twice
  • Tokyo, Japan - Moderate earthquake in Tokyo, Japan. It was shaking for extended period of time.
  • Ginza, Tokyo, Japan - Not sure which earthquake it was, but I felt shaking at about 23:25 on the 8th floor of the Courtyard Marriott in Ginza, Tokyo, Japan. The light shaking lasted at least a minute.
  • Sapporo, Hokkaido - 30 seconds long, not strong enough to dislodge much snow from the roofs but rattled cans lying on my shelf.
  • Sapporo - Short, moderate quake
  • Tokyo - In Nihonbashi area in the hotel experienced, mild shaking in the room.
  • Tokyo - On 19th floor of hotel in Shinagawa area of Tokyo. Bed shaking for at least two minutes.
  • misawa-shi - I was all like "Whoa" and then the walls were going "bumb bum bub bub" and my computer screen was going "rikki rikki rikki rikki" and then it was over and I washed my hands.
  • Misawa - Our alarm on our phone rang and within a few seconds at most a minute later the quake started...it was a bit strong but mostly lasted a bit
  • Akasaka Excel Hotel, Tokyo - My second earthquake, after the one two day ago.
  • Chiba - Quite light aftershock but lasted a while
  • sapporo - Awoken from sleep due to shaking.
  • Sapporo - The shaking made me dizzy
  • Tokyo - Mag 6.4 Hokkaido per JMA http://www.jma.go.jp/en/quake/20130202232726391-022317.html
  • Tokyo - Moderate quake
  • Toride, Ibaraki, Japan - Not too strong, but it lasted for a while. Very slight shaking at first and then more noticeable.
  • tokyo, shiba park - bed was shaking
  • Sapporo - Not pleasant experience. Mobile phone notification worked
  • Setagaya, Tokyo - Thought this was a phantom quake at first but then it picked up enough to rattle the doors in my house here in Tokyo. ER : Thanks Robert for sharing your Experience with us
  • misawa air force base - Approx 60 - 70 seconds of noticeable shaking.
  • Niseko - Long period of light shaking.
  • Sapporo - Very mild- 16th floor, 20-30 seconds
  • Chiba, Japan - Up and down movement...felt dizzy for a second ot two. I am on 15th floor in hotel. The time I put is approximate.
  • Sapporo, Japan - It lasted a long time.
  • Hanamiki Shi Iwate - long time and semi intensive
  • Kutchan - The lounge and light fittings were shaking
  • Asahikawa - I felt it in asahikawa an hour ago
  • Niseko, Hirafu - Swaying of the bed for around 1 min
  • Downtown Sapporo - We were on the 18th floor of the ANA Sapporo and felt the building shaking. it was strong enough to wake us up from our sleep.
  • Kita-17-jo, 5-chome Sapporo - Fairly strong and very long (60-70 seconds) of movement with both horizontal and vertical components. No inital "hit", but ramped up and stayed there with rolling motion. Mobile phone EWS worked, about 7 seconds notice. Sapporo, 10th floor hotel room. No known damage. Life goes on.
  • Kamakura - I was already in bed. Felt it shaking. Started praying and it stopped luckily after a couple of seconds.
  • Urakawa - woke up to the house shaking, a longer than normal Earthquake(15 seconds)
  • New chitose airport hotel - Woke me up from sleep, room was shaking like a small boat on light wawes, in hotel room on solid ground it feels scarry :-))
  • Adachi ku Tokyo Japan - first time to experience earthquake in Japan. Got nervous because of the tsunami they had before
  • Akkeshi-Gun Hokkaido - i was sleeping when suddenly awakened by d very strong earthquake, so shocked!
  • Niseko - I am in a tall houseand it seemed to move a lot. It lasted under 1 minute. I was preparing to run out of the house into the street, but it settled.
  • Sapporo - I felt it slightly in my dorm in Sapporo, Japan. It lasted about a minute.
  • Niseko - Long period of light shaking. Took place some time during the night.
  • Minato-ku, Tokyo, Japan - Shaking of floor and windows in our fifth floor apartment woke me up, but not the rest of the family...
  • Minato-ku, Tokyo, Japan - Shaking of our floors and windows in our 5th floor apartment building woke the adults, but not the kids...
  • Niseko - First time in earthquake as I am holidaying in Niseko/Hirafu. Mild tremor of floor and building for about a minute.As an Australian tourist I am not familiar with earthquakes as they are rare in Australia. Very much like large truck passing yet vibration seemed back and forth in a horizontal plane not bumping but a swaying motion with changing frequency. I had checked out earthquake exit points and ladders when I arrived. I wonder if all visitors know what to do.
  • Hirafu, Niseko - Light shakes felt for about 30 seconds
  • USGS Hokkaido, Japan Region Feb 02 14:17 6.9 103 MAP I Felt It INFO
    EMSC Hokkaido, Japan Region Feb 02 14:17 6.8 100 MAP I Felt It INFO
    JMA Hokkaido, Japan Feb 02 14:17 6.4 120 MAP I Felt It INFO
    USGS Hokkaido, Japan Region Feb 02 14:17 6.9 125 MAP I Felt It INFO
    GEOFON Hokkaido, Japan Region Feb 02 14:17 6.9 96 MAP I Felt It INFO


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    Country where you felt the earthquake
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    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.
    Write your experience below + let us know if your property has been damaged (even slight damage) or if you have knowledge of any damage caused by this earthquake. (max. 500 characters)

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