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Minor earthquake, 2.8 mag strikes near Chignik Lake in Alaska



Earthquake location 57.0074S, -157.7487WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Saturday, 104 km NE of Chignik Lake, Alaska (65 miles). Global date and time of event UTC/GMT: 02/04/16 / 2016-04-02 14:55:07 / April 2, 2016 @ 2:55 pm. The earthquake occurred at a depth of 6.1 km (4 miles). Exact location of event, depth 6.1 km, -157.7487° West, 57.0074° North. Id of earthquake: ak13425421. Event ids that are associated: ak13425421. The temblor was detected at 06:55:07 / 6:55 am (local time epicenter).

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. In the past 24 hours, there have been sixty, in the last 10 days sixty, in the past 30 days sixty-one and in the last 365 days one hundred and twelve earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 104 km NE of Chignik Lake, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -157.7487° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.0074° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 6.1 km Depth of the event in kilometers.
Place 104km NE 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 14:55:07 Time when the event occurred. UTC/GMT
Updated 2016-04-11 21:17:17 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 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 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 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 0.73 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 ak13425421 Id of event.
Event Code 13425421 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13425421, A comma-separated list of event ids that are associated to an event.

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