Very strong earthquake near East Coast Of Honshu, Japan, close to Miyake-Jima volcano - At least 4 injuries

Update April 18 - 09:34 UTC:
The video below shows some slight damage on the Miyake island

Update 15:48 UTC:
4 people were reported slightly injured on Miyake-Island. One man was injured by a landslide. (Several landslides occurred on the island, blocking roads and trails) The others, two of them residents of a nursing room, were injured by broken glass.
There are no detailed information about damage yet, but up to now it is now that some walls of houses were damaged too.

Update 09:28 UTC : Based on the latest census, Miyaki counts 2884 inhabitants.
Miyake-jima is an island in the Izu group, southeast of Honshū, Japan. The island is administered by the Tokyo Metropolitan government, with an area of 55.50 km².
Like other islands in the Izu Island group, Miyake-jima forms part of the Fuji-Hakone-Izu National Park.
Miyake Village serves as the local government of the island. Village is used in the sense of a municipality in this context, which also encloses nearby tiny uninhabited Ōnoharajima WSW of it Miyake-jima Island. The seat of the local government is in the village (in the traditional sense) of Tsubota on the southeast coast of Miyake Island. (source : Wikipedia)
The last eruption Miyake-Jima, an active stratovolcano, dates from 2010.

Screen Shot 2013-04-17 at 11.38.12

Update 09:28 UTC : As you can see on the map below, the danger for this earthquake does not exist on the mainland, but on the volcanic island of Miyake. The depth gives no immediate reason to believe that an explosive eruption on the volcano has happened (20 to 50 km depending on the source). We know however that eruption patterns can be influenced by very strong earthquakes.
The distance from the epicenter to the island is less than 10 km, which explains the 5+ intensity report from JMA Japan

Screen Shot 2013-04-17 at 11.28.12

The international agencies are reporting a far weaker preliminary Magnitude of 5.5 at 60 km.
We do trust the Japanese values most. They are indicating a Magnitude of 6.2 at a depth of 20 km.

JMA Japan reports a Max. Intensity of 5+ at Miyake Murayakuba-rinji-chosya
Based on our experience with Japanese earthquakes, considers JMA 5+ intensity as a potentially dangerous shaking.

Image courtesy and copyright JMA Japan

Image courtesy and copyright JMA Japan

179 km S of Tokyo, Japan / pop: 8,336,599 / local time: 17:57:40.0 2013-04-17
153 km S of Yokohama-shi, Japan / pop: 3,574,443 / local time: 17:57:40.0 2013-04-17
100 km SE of Shimoda / pop: 26,704 / local time: 17:57:00.0 2013-04-17

Most important Earthquake Data:

Magnitude : 5.6

Local Time (conversion only below land) : Unknown

GMT/UTC Time : 2013-04-17 08:57:30

Depth (Hypocenter)  : 10 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
EMSC Near S. Coast Of Honshu, Japan Apr 17 08:57 5.7 20 MAP
  • Shin-Yokohama - Building swayed for about 20s or so.
  • GEOFON Near East Coast Of Honshu, Japan Apr 17 08:57 5.6 10 MAP I Felt It INFO
  • Yokosuka City, Japan - At 5:58 pm on April 17,2013 the bed started shaking. This lasted about 20 seconds.
  • Hiroshima - On floor 14, building swaying and shaking and making creaking noises
  • Ebina - It feels like my chair moving to and fro



    Other earlier earthquakes in the greater epicenter area (since 2012)

    Strongest earthquakes Magnitude 3.5 or more within a 150 km radius from this earthquake (max. 60)



    <tr><td><span style="background-color: #cccccc;">17.04.13</span></td><td><span style="background-color: #cccccc;"><a href="" target="_blank">Japan, Izu-Inseln</a></span></td><td><span style="background-color: #cccccc;">6,2</span></td><td><span style="background-color: #cccccc;">42</span></td><td><span style="background-color: #cccccc;"><br /></span></td><td><span style="background-color: #cccccc;">--</span></td><td><span style="background-color: #cccccc;">4</span></td><td><span style="background-color: #cccccc;">2 - 3</span></td><td><span style="background-color: #cccccc;">--</span></td></tr>


    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)
    * mandatory fields