Earthquakes list May 31, 2011

Last update: May 31, 2011 at 11:31 pm by By

M 4.6      2011/05/31 13:13     Depth 11.9 km     MYANMAR-CHINA BORDER YUNNAN REGION
09:13:39 PM at epicenter
Moderately dangerous earthquake in a very vulnerable area of China.
Earlier earthquakes of approx. M 5.0 generated a lot of damage in this area.
134 km (83 miles) WSW (255°) from Dali, Yunnan, China
Satellite map of the greater epicenter area

M 5.6      2011/05/31 12:28     Depth 40.0 km      EASTERN HONSHU, JAPAN
09:28:36 PM at epicenter
Coastal JMA Intensity 4 aftershock at an intermediate depth (we maintain a standard of 5+ to be dangerous).
Approx. 20 km from Kamaishi and 30 km from Miyako.
74 km (45 miles) ESE of Morioka, Honshu, Japan
Satellite map of the greater epicenter area

M 4.5      2011/05/31 00:36    Depth 10.0 km     GULF OF ADEN
Ridge earthquake (separating tectonic plates) right in the middle of the Gulf of Aden
128 km NW Lasqoray (pop 6,941)
Satellite map of the greater epicenter area (green arrow)

Summary of very deep, deep moderate or weak quakes only faintly felt by people
M 4.7      2011/05/31 19:08     Depth 124.9 km      EASTERN NEW GUINEA REG, PAPUA NEW GUINEA
M 4.3      2011/05/31 18:45     Depth 74.0 km      MYANMAR-INDIA BORDER REGION
M 4.7      2011/05/31 15:17    Depth 39.7 km      NEAR THE NORTH COAST OF PAPUA, INDONESIA
M 4.6      2011/05/31 11:12     Depth 32.9 km     SOUTH OF JAVA, INDONESIA
M 4.7      2011/05/31 10:22     Depth 191.7 km     BONIN ISLANDS, JAPAN REGION
M 4.6      2011/05/31 07:59     Depth 35.6 km      SOUTH OF JAVA, INDONESIA

Japan, Honshu : aftershocks of M 4.5 or greater
M 4.7      2011/05/31 17:14    Depth 12.5 km      OFF THE EAST COAST OF HONSHU, JAPAN
M 5.6      2011/05/31 12:28     Depth 40.0 km      EASTERN HONSHU, JAPAN
M 4.7      2011/05/31 11:26     Depth 20.6 km     NEAR THE EAST COAST OF HONSHU, JAPAN
M 4.6      2011/05/31 07:50     Depth 47.3 km      NEAR THE EAST COAST OF HONSHU, JAPAN

Vanuatu, New Caledonia, Loyalty Islands : aftershocks of M4.5 or greater
M 4.9      2011/05/31 21:00     Depth 35.5 km     SOUTHEAST OF THE LOYALTY ISLANDS
M 4.9      2011/05/31 20:14     Depth 24.0 km      VANUATU

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This earthquake list covers important earthquakes in the world.
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The page is regularly updated to add new earthquakes.
green color = NOT dangerous for damage or injuries
orange color = MODERATE risk for damage or injuries
red color = CONSIDERABLE risk for damage or injuries

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I did feel it – Ik heb het gevoeld – Το έκανα αισθάνεται – Yo lo siento – 我的确感到了 – 私はそれを感じていました- Ich habe es gefühlt – Bunu hissediyorum yaptı – لم أشعر أنه

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People :
Felt by persons at rest, on upper floors or favorably placed.
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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.
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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.
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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.
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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.
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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).
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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.
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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.
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