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Light earthquake, 4 mag strikes near Chignik Lake in Alaska

Posted by admin on May 31, 2016 0 Comments

Earthquake location 57.0744S, -157.974WA light earthquake magnitude 4 (ml/mb) has struck on Tuesday, 103 km NNE of Chignik Lake, Alaska (64 miles). Global time and date of event 31/05/16 / 2016-05-31 12:31:03 / May 31, 2016 @ 12:31 pm UTC/GMT. Exact location of event, depth 8.3 km, -157.974° West, 57.0744° North. The temblor was reported at 04:31:03 / 4:31 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 8.3 km (5 miles) below the earth’s surface. Event id: ak13616852. Ids that are associated to the earthquake: ak13616852.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days five and in the last 365 days one hundred and seventeen earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

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: 103 km NNE of Chignik Lake, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -157.974° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.0744° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.3 km Depth of the event in kilometers.
Place 103km 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 2016-05-31 12:31:03 Time when the event occurred. UTC/GMT
Updated 2016-05-31 13:00:48 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 4.32 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 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 246 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 1.06 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 ak13616852 Id of event.
Event Code 13616852 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13616852, A comma-separated list of event ids that are associated to an event.

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