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Light earthquake: M4.2 quake has struck near Chignik Lake in Alaska

Posted by admin on April 2, 2016 0 Comments

Earthquake location 57.073S, -157.8875WA light earthquake with magnitude 4.2 (ml/mb) was reported 118 km NNE of Chignik Lake, Alaska (73 miles) on Saturday. Id of earthquake: ak13229952. Event ids that are associated: us20005e3n, ak13229952. The epicenter was at a depth of 48.2 km (30 miles). The temblor was reported at 01:06:04 / 1:06 am (local time epicenter). Exact location of earthquake, -157.8875° West, 57.073° North, depth 48.2 km. Date and time of earthquake in UTC/GMT: 02/04/16 / 2016-04-02 09:06:04 / April 2, 2016 @ 9:06 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been seven, in the last 10 days seven, in the past 30 days eight and in the last 365 days fifty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 118 km NNE of Chignik Lake, Alaska.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -157.8875° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.073° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 48.2 km Depth of the event in kilometers.
Place 118km NNE 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 2016-04-02 09:06:04 Time when the event occurred. UTC/GMT
Updated 2016-04-02 09:34:55 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 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 3.36 The maximum estimated instrumental intensity for the event.
Alert Level green 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 271 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 ,us,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 1.21 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 ak13229952 Id of event.
Event Code 13229952 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20005e3n,ak13229952, A comma-separated list of event ids that are associated to an event.

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