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Minor earthquake, 3.1 mag strikes near Chignik Lake in Alaska



Earthquake location 56.757S, -158.984WA minor earthquake with magnitude 3.1 (ml/mb) was detected on Tuesday, 57 km NNW of Chignik Lake, Alaska (35 miles). Global date and time of event UTC/GMT: 12/01/16 / 2016-01-12 17:31:25 / January 12, 2016 @ 5:31 pm. The earthquake occurred at a depth of 151.3 km (94 miles) below the earth’s surface. Event ids that are associated to the earthquake: ak12458026. Id of event: ak12458026. The temblor was detected at 08:31:25 / 8:31 am (local time epicenter). Exact location of earthquake, longitude -158.984 West, latitude 56.757 North, depth = 151.3 km.

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days fourteen earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel the quake?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 57 km NNW of Chignik Lake, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -158.984° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.757° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 151.3 km Depth of the event in kilometers.
Place 57km NNW of Chignik Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-01-12 17:31:25 Time when the event occurred. UTC/GMT
Updated 2016-01-12 21:27:17 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 reviewed 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 148 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 0.48 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 ak12458026 Id of event.
Event Code 12458026 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak12458026, A comma-separated list of event ids that are associated to an event.

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