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Light earthquake 4 mag, 86 km WSW of Anchor Point, Alaska



Earthquake location 59.614S, -153.335WA light earthquake with magnitude 4 (ml/mb) was reported 86 km WSW of Anchor Point, Alaska (53 miles) on Friday. The earthquake was roughly at a depth of 138 km (86 miles). Event id: at00o2tk0u. Ids that are associated to the earthquake: at00o2tk0u. Global time and date of event 20/02/16 / 2016-02-20 00:00:30 / February 20, 2016 @ 12:00 am UTC/GMT. Exact location of event, longitude -153.335 West, latitude 59.614 North, depth = 138 km. The temblor was detected at 15:00:30 / 3:00 pm (local time epicenter). A tsunami warning has been issued near Anchor Point in Alaska (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 fifteen, in the past 30 days one hundred and twenty-two and in the last 365 days two hundred and thirty earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 86 km WSW of Anchor Point, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -153.335° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 59.614° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 138 km Depth of the event in kilometers.
Place 86km WSW of Anchor Point, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-02-20 00:00:30 Time when the event occurred. UTC/GMT
Updated 2016-02-20 00:04:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 1 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 at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 27 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.23895187 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 147.6 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 at00o2tk0u Id of event.
Event Code 00o2tk0u An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00o2tk0u, A comma-separated list of event ids that are associated to an event.

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