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Light earthquake: M4.4 quake has struck near Amatignak Island in Alaska

Posted by admin on August 23, 2017 0 Comments

Earthquake location 51.1629S, -179.9713WA light earthquake with magnitude 4.4 (ml/mb) was reported 61 km W of Amatignak Island, Alaska (38 miles) on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 23/08/17 / 2017-08-23 00:10:55 / August 23, 2017 @ 12:10 am UTC/GMT. Exact location of earthquake, -179.9713° West, 51.1629° North, depth 39.34 km. The 4.4-magnitude earthquake has occurred at 12:10:55 / 12:10 pm (local time epicenter). Unique identifier: us2000aatv. Ids that are associated to the event: ak16626398, us2000aatv. The epicenter of the earthquake was roughly 39.34 km (24 miles) below the earth’s surface.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. 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 fourty-two earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light earthquakes in the world each year.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 61 km W of Amatignak Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -179.9713° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.1629° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 39.34 km Depth of the event in kilometers.
Place 61km W of Amatignak Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-23 00:10:55 Time when the event occurred. UTC/GMT
Updated 2017-08-23 00:36:53 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 2.01 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 298 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak,us, 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 0.505 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.87 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 204 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000aatv Id of event.
Event Code 2000aatv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16626398,us2000aatv, A comma-separated list of event ids that are associated to an event.

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