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Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.9 quake strikes near Willow in Alaska

Earthquake location 61.8545S, -150.4918WA minor earthquake magnitude 3.9 (mg/mb) was reported Wednesday, 26 kilometers (16 miles) from Willow in Alaska. The temblor was reported at 05:36:15 / 5:36 pm (local time epicenter) at a depth of 46.5 km (29 miles). Global time of event 2015-02-12 02:36:15 UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -150.4918 West, latitude 61.8545 North, depth 46.5 km.

Close countries, United States (c. 310 233 000 pop). The epicenter was 77 km (48 miles) from Anchorage (c. 291 800 pop), 77 km (48 miles) from Eagle River (c. 24 800 pop), 60 km (38 miles) from Knik-Fairview (c. 14 900 pop), 68 km (42 miles) from Lakes (c. 8 400 pop), 61 km (38 miles) from Tanaina (c. 8 200 pop). Nearest city, towns to epicentrum/hypocenter was Elmendorf Air Force Base, Palmer, Anchorage.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 26 km WNW of Willow, Alaska.

More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -150.4918° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.8545° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 46.5 km Depth of the event in kilometers.
Place 26km WNW 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 2015-02-12 02:36:15 Time when the event occurred. UTC/GMT
Updated 2015-02-12 03:00:57 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 5 The total number of felt reports
CDI 2.7 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 235 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 0.56 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 ak11506275 Id of event.
Event Code 11506275 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ak11506275 A comma-separated list of event ids that are associated to an event.

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