Strong earthquake at intermediate depth out of the East Coast of Chiba, Honshu, Japan - July 7, 2018

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Update 11:45 UTC: The maximum shaking intensity is JMA 5-
JMA 5- means :
* Many people are frightened and feel the need to hold onto something stable
* Dishes in cupboards and items on bookshelves may fall
* Unsecured furniture may move, and unstable furniture may topple over

Update 11:45 UTC: Intermediate depth earthquakes are commonly felt in a far greater radius than shallow earthquakes.

Update 11:44 UTC: JMA Japan reports a M6 at a depth of 50 km

Update 11:41 UTC: Based on the present earthquake parameters (Magnitude, Depth, Population, etc) and our experience with earthquake damage impact, does not expect any serious damage from this earthquake

Most important Earthquake Data:

Magnitude : 5.8

Local Time (conversion only below land) : Unknown

GMT/UTC Time : 2018-07-07 11:23:49

Depth (Hypocenter) : 50 km

Depth and Magnitude updates in the list below.

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SRC Location UTC Date/time M D INFO
USGS Ohara, Japan Jul 07 11:23 5.9 39 MAP
GEOFON Near East Coast Of Honshu, Japan Jul 07 11:23 5.8 50 MAP I Felt It INFO
  • tokyo - Moderate shaking
  • Zushi - 45 seconds
  • Yokohama - Strong shaking
  • TOKYO - Moderate shaking
  • Tokyo - At 20.23-24 there was shaking at our hotel room. It lasted for about a minute
  • Tokyo - Lasted 10 secs but vibrations lasted about a minute
  • Fujisawa - Moderate shaking
  • Fujiyoshida - 20-30 seconds in Fujiyoshida (Yamanashi-ken); enough to get my attention and make me a little nauseous on the 10th floor
  • Tokyo - Weak shaking
  • Yokosuka - Lasted for about 30 seconds
  • Tokyo - Light shaking
  • Asakusa, Tokyo - Shaking followed by steady vibration for about a minute. Clothes swaying on hangers.
  • Yokosuka - 20-30 seconds of shaking. Cat when running for cover. Furniture was shaking. No known damage.
  • Tokyo - I felt swaying for a little while and wondered if it was from riding the Shinkansen earlier.I am staying in a hotel near Tokyo Station. Then I looked to see if there was an earthquake and there was!
  • Yokohama - Strong shaking
  • Tokyo - About a minute, overall. No damages.
  • 東京 - Moderate shaking
  • Tokyo - It started swaying gently, then intensified, lasting for about 40-45 seconds.
  • Kyoto - I was at breakfast in the hotel\'s cafeteria and the whole place started shifting and shaking. Nothing broken, only felt one earthquake, not two. Lasted probably around 20 seconds, but felt like longer.
  • shinjuku - Moderate shaking
  • Akasaka, Tokyo - Light shaking
  • Tokyo - Moderate shaking
  • Tokyo - We lagen op bed in ons hotel kamer een beetje tv te kijken. Opeens begon het bed en de ramen te trillen. We dachten eerst dat het de buren waren sinds het hier nogal gehorig is. Na een aantal seconden had ik door dat het om een aardbeving ging. (eerste keer in me leven). Het hield ongeveer 10 seconden aan en toen bleef het stil.
  • Tomyo - 30sec
  • Tokyo - Léger tremblement à la tokyo tower
  • Kanagawa, Sagamihara - Light shaking
  • yokohama - Strong shaking
  • tokyo - assez pour entendre des craquements et sentir le batiment bougé. cela a duré environ 30/40 secondes.
  • Tokyo - A few bottles fell off shelves in the restaurant
  • Yokohama-shi - We were at a restaurant, and we felt moderate shaking for about 5 seconds, followed by vibrations. It was strong enough to move utensils on the table.
  • Kokubunji City - Very weak shaking

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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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