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Minor earthquake, 3.1 mag was detected near Adak in Alaska


Earthquake location 51.322S, -176.8669WA minor earthquake magnitude 3.1 (ml/mb) has occurred on Tuesday, 63 km SSW of Adak, Alaska (39 miles). The earthquake occurred at a depth of 35 km (22 miles). Unique identifier: us600085jm. Ids that are associated to the event: ak02029dhkk8, us600085jm. Exact time and date of earthquake 18/02/20 / 2020-02-18 20:41:49 / February 18, 2020 @ 8:41 pm UTC/GMT. Exact location of earthquake, longitude -176.8669 West, latitude 51.322 North, depth = 35 km. The temblor was detected at 08:41:49 / 8:41 am (local time epicenter).

Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been nine, in the last 10 days fifteen, in the past 30 days one hundred and fourty-three and in the last 365 days three hundred and fifteen earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 63 km SSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -176.8669° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.322° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 63km SSW of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-02-18 20:41:49 Time when the event occurred. UTC/GMT
Updated 2020-03-18 19:29:44 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 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 148 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 0.496 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.21 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 212 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 us600085jm Id of event.
Event Code 600085jm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak02029dhkk8,us600085jm, A comma-separated list of event ids that are associated to an event.

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