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Minor earthquake 2.8 mag, 13 km SSW of Willow, Alaska



Earthquake location 61.635S, -150.1435WA minor earthquake magnitude 2.8 (ml/mb) has struck on Sunday, 13 kilometers (8 miles) from Willow in Alaska. Exact location of earthquake, -150.1435° West, 61.635° North, depth 35.1 km. Date and time of earthquake in UTC/GMT: 18/12/16 / 2016-12-18 18:28:44 / December 18, 2016 @ 6:28 pm. The earthquake occurred at a depth of 35.1 km (22 miles). The 2.8-magnitude earthquake was detected at 09:28:44 / 9:28 am (local time epicenter). Id of earthquake: ak14761162. Event ids that are associated: ak14761162.

Closest city/cities/towns to epicentrum/hypocenter was Palmer, Elmendorf Air Force Base, Gateway (min 5000 pop). Earthquake epicenter was 48 km (30 miles) from Anchorage (c. 291 800 pop), 46 km (29 miles) from Eagle River (c. 24 800 pop), 32 km (20 miles) from Knik-Fairview (c. 14 900 pop), 44 km (27 miles) from Lakes (c. 8 400 pop), 38 km (23 miles) from Tanaina (c. 8 200 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

In the past 24 hours, there have been 0, in the last 10 days two, in the past 30 days ten and in the last 365 days eighty-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Each year there are an estimated 1,300,000 minor quakes in the world.

Did you feel the quake?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 13 km SSW of Willow, Alaska.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -150.1435° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.635° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35.1 km Depth of the event in kilometers.
Place 13km SSW 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 2016-12-18 18:28:44 Time when the event occurred. UTC/GMT
Updated 2016-12-18 18:42:01 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 0.76 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 ak14761162 Id of event.
Event Code 14761162 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak14761162, A comma-separated list of event ids that are associated to an event.

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