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Minor earthquake, 2.8 mag strikes near Willow in Alaska



Earthquake location 61.9452S, -150.6454WA minor earthquake with magnitude 2.8 (ml/mb) was reported 38 kilometers (24 miles) from Willow in Alaska on Wednesday. The temblor was picked up at 14:46:50 / 2:46 pm (local time epicenter). Exact location of event, longitude -150.6454 West, latitude 61.9452 North, depth = 49.7 km. Event ids that are associated to the earthquake: ak12477473. Id of event: ak12477473. Global date and time of event UTC/GMT: 20/01/16 / 2016-01-20 23:46:50 / January 20, 2016 @ 11:46 pm. The earthquake was roughly at a depth of 49.7 km (31 miles).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Wasilla, Tanaina, Knik-Fairview. Event epicenter was 73 km (45 miles) from Knik-Fairview (c. 14 900 pop), 73 km (45 miles) from Tanaina (c. 8 200 pop), 75 km (47 miles) from Wasilla (c. 7 800 pop), 65 km (41 miles) from Meadow Lakes (c. 7 600 pop). Country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been 0, in the last 10 days two, in the past 30 days four and in the last 365 days seventy-five earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 38 km NW of Willow, Alaska.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -150.6454° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.9452° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 49.7 km Depth of the event in kilometers.
Place 38km NW of Willow, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-01-20 23:46:50 Time when the event occurred. UTC/GMT
Updated 2016-01-21 00:41:15 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status automatic Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 121 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ak12477473 Id of event.
Event Code 12477473 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak12477473, A comma-separated list of event ids that are associated to an event.

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