Earthquakes list March 21, 2012 – Very strong earthquake in Papua New Guinea

Last update: March 22, 2012 at 12:29 am by By

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Shaking map - courtesy USGS

M 6.7      2012/03/21 22:15     Depth 144.8 km      NEW GUINEA, PAPUA NEW GUINEA
Local time : Thursday, March 22, 2012 at 08:15:05 AM at epicenter
Not dangerous if the depth remains at +100 km
Preliminary values are mentioning a Magnitude of 6.7
Update 22:51 UTC : USGS has updated the above depth to 105.9 km, still acceptable for PNG (acceptable in this case is that Earthquake-Report does not expect that this earthquake would generate serious damage except for the risk on landslides).
The greatest danger for Papua New Guinea is landslides as the mountainous country in combination with rain-forest can create serious landslides
 Update 22:51 UTC : USGS has calculated that 147,000 people will experience a strong shaking and that more than 1 million people will have felt a moderate shaking.
Update 22:57 UTC : The locations above the epicenter are not that important for deep earthquakes which occur in the hot solid mantle of the island. The radius that the shaking will be felt the same is far greater than with shallower earthquakes.  NO tsunami risk as the epicenter is below land.
The epicenter area is just below one of the (only) reasonable roads of the island. Lae and Madang are the main cities but the shaking will not be strong enough to damage houses and buildings in both sities.
The closest village to the epicenter is Kainantu (8,509 inhabitants).  The biggest city close to the epicenter is Goroka (18,503 people). Goroka is the capital of the Eastern Highlands Province and is situated at an altitude of 1,600 meter. The epicenter is (following USGS) right below the Highlands Highway
Update 23:17 UTC : I Have Felt it reports received by Earthquake-Report.com are mentioning the same MMI values than predicted by USGS.
Update 23:33 UTC : Close to the epicenter is the Yonki Dam. Yonki Dam is an earth-fill embankment dam over the Ramu River that supports the Ramu 1 hydroelectric power plant and the (under construction) Yonki Toe of Dam power plant Yonki Dam is located in the Eastern Highlands Province of Papua New Guinea.

 

Label info : M = magnitude, D = depth (km), Time = UTC – Click here for conversion in your local time.

SRC Location UTC Date/time M D INFORMATION
EMSC Taiwan Mar 21 23:44 PM 4.6 40 MAP I Felt It
  • Taiwan - The shake make you feel dizzy and still have time to think if you would like to run outside or find a shelter. But normally, while you are still thinking, it stops shaking.
  • Taiwan - Did not aware this earthquake due to only MMI I in my location of Taoyuan, Taiwan
    		•
    USGS Taiwan Mar 21 23:44 PM 4.6 17 MAP I Felt It
    GEOFON Taiwan Mar 21 23:44 PM 4.7 10 MAP I Felt It
    EMSC New Guinea, Papua New Guinea Mar 21 22:15 PM 6.6 122 MAP I Felt It
    USGS New Guinea, Papua New Guinea Mar 21 22:15 PM 6.7 144 MAP I Felt It
    GEOFON New Guinea, Papua New Guinea Mar 21 22:15 PM 6.6 114 MAP I Felt It
    USGS New Guinea, Papua New Guinea Mar 21 22:15 PM 6.6 105 MAP I Felt It
  • Lae, Morobe Province, Papua New Guinea - Moderate shaking indicated
  • Goroka, Eastern Highland PNG - Strong shaking felt in Eastern Highlands of Papua New Guinea at 8:31AM PNG time. Strong shaking indicated. ER : Goroka is at only 66 km from the epicenter.
  • Goroka - Felt heavy movements, saw power poles moving but did not see any damagges caused where I was.
  • Goroka - Was in the office and it was bad. Not enough for me to hide under the table though.
  • Goroka EHP - Felt quake happen quite suddenly, not a gradual buildup, but hit suddenly with noise straight away of shelves and crockery rattling. Quickly went outside onto the veranda and saw the house posts wobbling. Died slightly then came back stronger, probably lasted about 30 seconds. Nothing broken, but a couple of ornaments fell over.
    		•
    GEOFON Near East Coast Of Honshu, Japan Mar 21 21:44 PM 4.9 10 MAP I Felt It
    USGS Off The East Coast Of Honshu, Japan Mar 21 21:43 PM 4.9 34 MAP I Felt It
    EMSC Eastern Honshu, Japan Mar 21 21:43 PM 4.8 10 MAP I Felt It
    GEOFON Banda Sea Mar 21 18:54 PM 4.7 167 MAP I Felt It
    EMSC Kepulauan Barat Daya, Indonesia Mar 21 18:54 PM 4.7 171 MAP I Felt It
    EMSC Off East Coast Of Honshu, Japan Mar 21 18:05 PM 4.9 10 MAP I Felt It
    GEOFON Off East Coast Of Honshu, Japan Mar 21 18:05 PM 4.9 10 MAP I Felt It
    GEOFON Southwestern Siberia, Russia Mar 21 18:00 PM 4.6 10 MAP I Felt It
    EMSC Southwestern Siberia, Russia Mar 21 18:00 PM 4.6 10 MAP I Felt It
    USGS Off The East Coast Of Honshu, Japan Mar 21 16:52 PM 4.8 4 MAP I Felt It
    EMSC Off East Coast Of Honshu, Japan Mar 21 16:52 PM 4.8 5 MAP I Felt It
    EMSC Off East Coast Of Honshu, Japan Mar 21 12:18 PM 4.6 10 MAP I Felt It
    USGS Off The East Coast Of Honshu, Japan Mar 21 12:01 PM 4.8 34 MAP I Felt It
    GEOFON Off East Coast Of Honshu, Japan Mar 21 12:01 PM 5.1 10 MAP I Felt It
    EMSC Off East Coast Of Honshu, Japan Mar 21 12:01 PM 5.1 2 MAP I Felt It
    EMSC Guerrero, Mexico Mar 21 11:36 AM 5.0 40 MAP I Felt It
    GEOFON Guerrero, Mexico Mar 21 11:36 AM 4.7 10 MAP I Felt It
    USGS Guerrero, Mexico Mar 21 11:36 AM 5.0 20 MAP I Felt It
    EMSC Off East Coast Of Honshu, Japan Mar 21 08:32 AM 4.8 34 MAP I Felt It
    USGS Off The East Coast Of Honshu, Japan Mar 21 08:32 AM 4.7 37 MAP I Felt It
    GEOFON Off East Coast Of Honshu, Japan Mar 21 08:32 AM 4.8 25 MAP I Felt It
    EMSC Andreanof Islands, Aleutian Is. Mar 21 04:50 AM 4.6 59 MAP I Felt It
  • Eagle River Alaska - Was writing on my laptop, and suddenly hous started shaking! D:
    		•
    USGS Andreanof Islands, Aleutian Islands, Alaska Mar 21 04:50 AM 4.6 58 MAP I Felt It
    USGS Oaxaca, Mexico Mar 21 04:02 AM 4.6 10 MAP I Felt It
    EMSC Oaxaca, Mexico Mar 21 04:02 AM 4.6 11 MAP I Felt It
    EMSC Guerrero, Mexico Mar 21 02:54 AM 5.0 60 MAP I Felt It
    GEOFON Near Coast Of Guerrero, Mexico Mar 21 02:54 AM 5.0 29 MAP I Felt It
    USGS Guerrero, Mexico Mar 21 02:54 AM 5.0 20 MAP I Felt It
    EMSC Guerrero, Mexico Mar 21 02:25 AM 4.9 80 MAP I Felt It
    GEOFON Near Coast Of Guerrero, Mexico Mar 21 02:25 AM 4.7 10 MAP I Felt It
    USGS Oaxaca, Mexico Mar 21 02:25 AM 4.9 10 MAP I Felt It
    EMSC Oaxaca, Mexico Mar 21 02:07 AM 4.6 2 MAP I Felt It

    Data sources courtesy : USGS – EMSC – GFZ – GEONET

    Earthquakes occurred yesterday (UTC time), but today local time

    M 5.2      2012/03/20 21:07      Depth 34.4 km      TONGA REGION
    M 4.9      2012/03/20 19:43      Depth 17.9 km      KALIMANTAN, INDONESIA
    M 6.2      2012/03/20 17:56      Depth 66.9 km      PAPUA, INDONESIA
    M 4.6      2012/03/20 16:53      Depth 41.9 km      NEAR THE EAST COAST OF HONSHU, JAPAN

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    I have felt it – Ik heb het gevoeld – Το έκανα αισθάνεται – Yo lo he sentido – 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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    City/Village where you felt the earthquake
    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.
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