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Light earthquake, 4.4 mag strikes near Amatignak Island in Alaska

Posted by admin on October 21, 2015 0 Comments

Earthquake location 50.8824S, 179.339WA light earthquake magnitude 4.4 (ml/mb) strikes 116 km WSW of Amatignak Island, Alaska (72 miles) on Wednesday. Global date and time of event UTC/GMT: 21/10/15 / 2015-10-21 07:45:54 / October 21, 2015 @ 7:45 am. The temblor was picked up at 19:45:54 / 7:45 pm (local time epicenter). The earthquake was roughly at a depth of 24.23 km (15 miles). Exact location, longitude 179.339° East, latitude 50.8824° North, depth = 24.23 km. Unique identifier: us10003q5r. Ids that are associated to the event: us10003q5r. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 116 km WSW of Amatignak Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 179.339° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.8824° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.23 km Depth of the event in kilometers.
Place 116km WSW 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 2015-10-21 07:45:54 Time when the event occurred. UTC/GMT
Updated 2015-10-21 09:43:35 Time when the event was most recently updated. UTC/GMT
Timezone offset 720 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 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 ,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 0.496 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.46 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 221 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 us10003q5r Id of event.
Event Code 10003q5r An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003q5r, A comma-separated list of event ids that are associated to an event.

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