Massive very deep earthquake out of the Japan coast - NO tsunami only survives with (mostly small) PRIVATE DONATIONS. Your gift will be highly appreciated.
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Update : So far NO aftershocks which may stay like that in the case of these very deep earthquakes

Update : The earthquake will have been felt in a very wide area, mostly as a long slight shaking.

Update : 1 prefecture got a 5+ shaking value : Ogasawara-mura Hahajima (Chich jima island and nearest to the epicenter). 5+ is considered at ER as a possible damaging earthquake.

Update : JMA Japan reports even a higher Magnitude than those listed on this page M8.5 at 590 km depth

Update : JMA Japan reports NO tsunami warnings or advisories (because of the deep hypocenter)

Update : a very deep earthquake happened in the hot solid mantle of the earth  out of the Japan coast

Screen Shot 2015-05-30 at 04.42.00

189km (117mi) WNW of Chichi-shima, Japan
771km (479mi) SSE of Shimoda, Japan
781km (485mi) SSE of Oyama, Japan
783km (487mi) SE of Shingu, Japan
874km (543mi) S of Tokyo, Japan

Most important Earthquake Data:

Magnitude : 7.8

Local Time (conversion only below land) : Unknown

GMT/UTC Time : 2015-05-30 11:23:03

Depth (Hypocenter) : 695 km

Depth and Magnitude updates in the list below.

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.

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SRC Location UTC Date/time M D INFO
PTWC May 30 11:33 8.5 0 MAP
USGS Chichi-shima, Japan May 30 11:23 7.8 677 MAP
  • Jangyu - 15th floor of apartment block shook and swayed at 20h26 local time
  • EMSC Bonin Islands, Japan Region May 30 11:23 7.8 693 MAP
    GEOFON Bonin Islands, Japan Region May 30 11:23 7.8 695 MAP I Felt It INFO
    WCATWC Bonin Islands Region May 30 11:23 8.5 691 MAP
    USGS Chichi-shima, Japan May 30 11:23 8.5 696 MAP
  • tokyo - no damage
  • Tokyo - The Bed slightly moved
  • Kyobashi, Osaka - Woke me up
  • Chuo-ku, Tokyo - Unsecured objects fell from shelves. No damage - but long duration and scary.
  • Tokyo - Sitting in a hotel, I could feel it shake for what seemed like a minute. A drink sitting on a coffee table was swaying quite a bit. No known damage though.
  • Tokyo - La secousse a duré environ une minute. On avait l'impression d'être sur un bateau. Pas de dégâts dans la maison.
  • saitama - First is light shaking but fast. After a few minutes, a slow moving shake but stronger than the first.
  • Hyogo - Felt dizzy for a few minutes, realised it was an earthquake. at 8.30pm
  • Narita Airport area - No damage, no flights cancelled, but the horizontal shaking & creaking were scary. Had time to get dressed, grab valuables & contemplate evacuating, but didn't. Heard on TV that it lasted 3 minutes.
  • Numazu - Ik schudde op mijn stoel gedurende 5 seconde, rende naar buiten en was daar samen met een buitenlander. Voor de japaners was dit normaal. Het gebouw kan er tegen.
  • Miyagi - Bed was rocking and walls were creaking but it felt pretty standard and lasted maybe 15-20 seconds.
  • Tokyo - Really long and slow sideways movements (back and forth) well over two minutes long. 5/30/2015 8:25 pm
  • Mito - 13th story apt ... more swaying than shaking ...
  • Yokosuka - Was in a shopping center, ufo machine cranes were shaking and the floor felt like it was rolling. Drinks were moving and signs were swaying as well. It lasted a long time, and I felt pretty dizzy at first before the shaking got stronger.
  • Tokyo - Secousse bien ressentie dans mon hôtel mais bien attenuée par les mesures parasismiques, aucun dégat à signaler
  • Bunkyo-ku - There was no damage to my home. I was in my kitchen and the table that the microwave is on was swaying back and forth. The strings to the fan were shaking too and I was nervous.
  • Tokyo tower - We on 25 floor and building was creeking and swaying like a boat, family went in below table to take cover and I ran like headless chicken in panic not sure what to do. What now?
  • Tokyo - 17th floor in a hotel, building shook quite frequently then seemed to sway back and forth for a couple of minutes. Certainly a scary feeling and not something I'm used to!
  • Tokyo - Enough to feel but didn't say danger. Light poles were twirling due to the waves. Thought it was a small one until I saw the news. Wow, 8.5
  • Saitama ken Toda shi - No damage but it shook from side to side for quite a while. Some of the cupboard doors opened but nothing fell out.
  • Tokyo - At the 17th floor of a hotel in Shinjuku Tokyo I saw the hangers moving in the wardrobe and flet the building moving from one side to the other other it was like moving on a smooth wave but it was much more important than yesterday no damage in the Hilton building
  • Tokyo - Out at dinner on 8th floor. Very long swaying with some stronger shaking. Half the diners dove under their tables. Hanging lamps and window blinds swinging wildly. Nothing fell off tables or broke. Building swayed gently for a few minutes afterwards. Many people felt nauseous. No evacuation. A few minutes after, everyone went back to their dinners.
  • Tokyo - Épp egy bolt negyedik emeleten voltunk. Minden mozgott, az épület is alattunk
  • Tokyo - Vibrations très faibles ressenties pendant 30 secondes dans la chaise ou j'étais assis suivies d'une longue secousse de grande amplitude, même au 3ème étage de l'immeuble. Le lustre se balançait fort et quelques objets sont tombés d'une étagère. A part cela, pas de dégâts.
  • Tokyo - Woke up from light sleeping, building felt like it was swaying, hanging mirror on the wall was swaying back and forth. Thought maybe we should take cover but it ended before we did. Lasted maybe a minute or less.
  • Numazu City - I was lying down on my bed reading at around 8pm I think May 30, when there was strong shaking - I actually felt dizzy. It felt like it went on for 3mins! I have learned that most Jap are not alarmed on what I think is already alarming, so I did not go outside but kept the outdoor camera on. No one seemed to be going out also.




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    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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