Important historic earthquakes (until 2013) in Alaska, USA

Last update: April 28, 2014 at 4:57 pm by By

The list of the 50 most recent earthquakes in this state can be found at the bottom of this page.

 

Data courtesy NOAA hazard database

Data courtesy NOAA hazard database

Screen Shot 2014-04-28 at 18.29.21TSU - means that a tsunami was triggered - Vol - means that the earthquake had a volcanic origin


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Label info : M = magnitude, D = depth (km), Time = UTC – Alaska time = UTC – 9

SRC Location UTC Date/time M D INFO
USGS Anchor Point, Alaska Mar 22 23:36 2.5 57 MAP I Felt It
EMSC Alaska Peninsula Mar 22 18:20 3.8 122 MAP I Felt It
USGS King Salmon, Alaska Mar 22 18:20 3.8 122 MAP I Felt It INFO
USGS Atka, Alaska Mar 22 17:22 3.2 194 MAP I Felt It INFO
USGS Little Diomede Island, Alaska Mar 22 09:04 4.2 10 MAP I Felt It
USGS Cantwell, Alaska Mar 22 02:30 2.5 1 MAP I Felt It
USGS Adak, Alaska Mar 22 01:47 3.9 45 MAP I Felt It INFO
USGS Adak, Alaska Mar 22 01:47 3.9 20 MAP I Felt It
USGS Central Alaska Mar 21 22:24 2.5 19 MAP I Felt It
USGS Prudhoe Bay, Alaska Mar 21 10:47 2.8 8 MAP I Felt It
USGS Talkeetna, Alaska Mar 21 10:07 2.6 80 MAP I Felt It
USGS Cantwell, Alaska Mar 21 06:43 2.5 50 MAP I Felt It
USGS King Salmon, Alaska Mar 20 15:36 2.8 10 MAP I Felt It
EMSC Northern Alaska Mar 19 04:09 2.9 9 MAP I Felt It
USGS Arctic Village, Alaska Mar 19 04:09 2.9 9 MAP I Felt It
USGS Gustavus, Alaska Mar 18 22:37 2.5 0 MAP I Felt It
EMSC Southern Alaska Mar 18 16:19 3.3 15 MAP I Felt It
USGS Southern Alaska Mar 18 16:19 3.3 15 MAP I Felt It INFO
USGS Anchor Point, Alaska Mar 18 13:14 3.2 66 MAP I Felt It
EMSC Southern Alaska Mar 18 13:14 3.2 67 MAP I Felt It INFO
USGS Willow, Alaska Mar 18 13:12 2.8 48 MAP I Felt It
USGS Valdez, Alaska Mar 18 10:52 2.5 10 MAP I Felt It
USGS Soldotna, Alaska Mar 18 09:16 2.6 35 MAP I Felt It
USGS Chignik Lake, Alaska Mar 18 09:01 4.0 87 MAP I Felt It INFO
EMSC Alaska Peninsula Mar 18 09:01 4.0 110 MAP I Felt It
USGS Redoubt Volcano, Alaska Mar 18 04:59 2.5 109 MAP I Felt It
EMSC Central Alaska Mar 18 00:56 2.7 5 MAP I Felt It
USGS Healy, Alaska Mar 18 00:56 2.7 5 MAP I Felt It
USGS Noatak, Alaska Mar 17 15:02 3.7 40 MAP I Felt It
EMSC Northern Alaska Mar 17 15:02 3.7 41 MAP I Felt It
USGS Cape Yakataga, Alaska Mar 17 14:57 2.9 8 MAP I Felt It
USGS Cape Yakataga, Alaska Mar 17 14:45 3.2 10 MAP I Felt It
EMSC Southern Alaska Mar 17 14:45 3.2 11 MAP I Felt It INFO
USGS Cape Yakataga, Alaska Mar 17 13:31 2.9 8 MAP I Felt It
USGS Healy, Alaska Mar 17 10:27 2.8 1 MAP I Felt It
EMSC Southern Alaska Mar 17 07:47 3.8 4 MAP I Felt It INFO
USGS Fishhook, Alaska Mar 17 07:47 3.8 3 MAP I Felt It INFO
USGS Sand Point, Alaska Mar 17 04:11 4.0 44 MAP I Felt It INFO
EMSC Alaska Peninsula Mar 17 04:11 4.0 45 MAP I Felt It
USGS Talkeetna, Alaska Mar 16 16:05 3.1 7 MAP I Felt It
EMSC Central Alaska Mar 16 16:05 3.3 14 MAP I Felt It INFO
USGS Willow, Alaska Mar 16 13:12 2.7 29 MAP I Felt It
USGS Homer, Alaska Mar 16 11:39 2.6 41 MAP I Felt It
USGS Larsen Bay, Alaska Mar 16 07:55 4.3 40 MAP I Felt It
EMSC Kodiak Island Region, Alaska Mar 16 07:55 4.7 47 MAP I Felt It INFO
GEOFON Kodiak Island Region, Alaska Mar 16 07:55 5.0 33 MAP I Felt It
USGS Attu Station, Alaska Mar 16 03:41 4.0 46 MAP I Felt It INFO
USGS Semisopochnoi Island, Alaska Mar 15 22:19 5.6 22 MAP I Felt It
USGS Little Sitkin Island, Alaska Mar 15 22:19 5.4 18 MAP I Felt It
USGS Little Sitkin Island, Alaska Mar 15 22:19 5.4 1 MAP I Felt It

Data sources courtesy : USGSEMSCGFZGEONET

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Latitude (area) where you felt the earthquake
Longitude (area) 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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