Very Strong but Very Deep earthquake in the Izu Islands region, Japan

Update 01:02 UTC : JMA JApan reports a Magnitude of M6.9 but also very deep at 400 km = the hot solid mantle of the earth. Harmless.
Very deep earthquakes cannot generate tsunamis. Maximum shaking was a JMA 4 at Iwanuma-shi Sakura*
JMA 4 shaking = * Most people are startled.
* Hanging objects such as lamps swing significantly.
* Unstable ornaments may fall.
Based on our experience with Japanese earthquakes, earthquake-report.com considers JMA 5+ intensity as a potentially dangerous shaking.

Very strong but also very deep earthquake in the Izu Islands region, but far enough from populated islands and the mainland to remain harmless. The depth has the consequence that this earthquake was felt in a wide radius, even in Tokyo (637 km).

Screen Shot 2013-09-04 at 03.10.19

  1. 356km (221mi) SSW of Hachijo-jima, Japan
  2. 494km (307mi) SSE of Shingu, Japan
  3. 514km (319mi) S of Oyama, Japan
  4. 515km (320mi) SSE of Owase, Japan
  5. 637km (396mi) S of Tokyo, Japan

Most important Earthquake Data:

Magnitude : 6.5

Local Time (conversion only below land) : Unknown

GMT/UTC Time : 2013-09-04 00:18:24

Depth (Hypocenter)  : 419 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.

Refresh this list
SRC Location UTC Date/time M D INFO
USGS Izu Islands, Japan Region Sep 04 00:18 6.5 407 MAP
  • Tokyo - Slight building shaking with hanging pictures moving
  • Camp Zama - Started very subtle then jerked and shook harder
  • Wakoshi, Saitama - Slight shaking for a short time, lamps and light fixtures started swinging.
  • Toyko - Felt strong swaying on 28th floor of cerulean Tokyo hotel
  • Yokohama - TV and shelfs were shaking for about one minute.
  • Mito - Basketball goals were rocking and shaking a lot. The floor of the gym was swaying. It wasnt hard to stand but it was noticeable .
  • Yokosuka - Older building, very sensitive to quake movement.
  • Yokota AB, Japan - Lasted about 10-15 seconds.
  • Mukaigawara - 12 floor building shaking
  • Tokyo - I live in a house in Fussa, Tokyo. We rarely feel earthquakes now that we are on the ground level. However, today's quake was fairly shaky for us.
  • Shijuku Tokyo - Shaking lasted about one minute, woke me up
  • Tokyo - I felt a very, very weak shake a few seconds before the main shaking began. Very obvious shaking. Open doors were swaying, light/electric poles outside were swaying. Not strong enough to do any damage here. (northern Tokyo, 3rd floor concrete apartment)
  • Higashi Kurume - Felt strong swaying in Higashi Kurume, Tokyo
  • Yokosuka - The bed started shaking and kept shaking for a full 30 seconds. I heard things moving around in the living room and kitchen as well.
  • Tokyo, Adachi-ku - It lasted many seconds
  • Ayase Kanagawa - Felt my bed shifting back and forth, seemed like a long quake
  • Yokosuka- Taura - Light to moderate shaking for about 2 minutes.
  • Tokyo - Shook enough to wake me up!
  • Narita, Japan - Narita Hilton Hotel. On the 4th floor, the building swayed gently with a "jiggle" motion, like the motion one feels when riding on a train.
  • Tokyo - Felt strongly in Ningyocho, Tokyo.
  • Ebisu - 6th floor in Ebisu moderate shaking for 30-40 seconds
  • Kawasaki - Light shaking, rocking my building back and forth.
  • Soka - The shock waves seemed to build up. At first I wasn't sure if it was an earthquake or not but after some gentle swaying it led to some brief shaking.
  • Shirokane, Tokyo - Shaking strong initially and gradually diminishing. Swaying of 2nd story house lasting around one minute. No damage.
  • Tokyo - Shinjuku Hilton, lifts stopped for checking, felt for about 25 seconds
  • Tokyo - 37th floor of the Tokyo Conrad. Little swaying, only a moderate up and down shake.
  • Tokyo - 19th Floor - Laforet Tokyo Hotel. Lasted for 20-30 seconds. No structural damage to building. No falling debris.
  • Tokyo, Takanawa - Window shades and cupboard doors rattled. Watched the camellia tree in the backyard shaking
  • Tokyo - Felt building sway. On the 29th floor.
  • Tokyo - I was sleeping with my wife, exactly when i was just about to cum, i felt strong vibes all around me. wow. my wife started screaming like hell, it was AMAZING!!
  • Roppongi - Creaking and cracking of my apartment on the first floor...swaying of TV, lamps inside, other items inside...could see trees and plants shaking some outside...very noticeable!
  • atsugi-shi, kanagawa - I thought i was having a dream and shaking the bed. Woke up realizing it was a quake.... Maybe God trying to waking me up... thank you God for waking me up and making me safe.... im alone and im scared... feel so dizzy.....
  • Kawasaki - Significant rolling felt for over a minute.
  • Sarugakucho Tokyo - The shaking was enough to wake me up in bed.
  • minato-ku, tokyo - Very brief (1 sec or so)
  • Tokyo - Lights were swaying violently. It woke me up from a deep sleep.
  • Mitaka, Tokyo - Felt room swaying gently but consistently back and forth, lasted longer than most people seemed accustomed to (my first Japan earthquake).
  • Fujimino - It was very light, I wasn't scared at all although it was the first earthquake I ever felt.
  • Zama - Moderate movement, lasted for over a minute.
  • GEOFON Southeast Of Honshu, Japan Sep 04 00:18 6.4 419 MAP
    EMSC Izu Islands, Japan Region Sep 04 00:18 6.5 419 MAP I Felt It INFO


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    SHARE YOUR EARTHQUAKE EXPERIENCE WITH US

    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) ?
    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.
    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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