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Minor earthquake: M3.1 quake has struck near Atka in Alaska



Earthquake location 52.8934S, -173.588WA minor earthquake magnitude 3.1 (ml/mb) has occurred on Saturday, 88 km NNE of Atka, Alaska (55 miles). The epicenter of the earthquake was roughly 182.51 km (113 miles) below the earth’s surface. Exact location of event, longitude -173.588 West, latitude 52.8934 North, depth = 182.51 km. Event id: us1000d4jp. Ids that are associated to the earthquake: ak18696787, us1000d4jp. Exact time and date of event in UTC/GMT: 10/03/18 / 2018-03-10 21:16:37 / March 10, 2018 @ 9:16 pm. The 3.1-magnitude earthquake has occurred at 09:16:37 / 9:16 am (local time epicenter).

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been five, in the last 10 days five, in the past 30 days seven and in the last 365 days seventy-five earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 130,000 minor quakes in the world each year.

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 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: 88 km NNE of Atka, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -173.588° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.8934° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 182.51 km Depth of the event in kilometers.
Place 88km NNE of Atka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-03-10 21:16:37 Time when the event occurred. UTC/GMT
Updated 2018-03-20 23:40:49 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 0.617 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 140 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 us1000d4jp Id of event.
Event Code 1000d4jp An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18696787,us1000d4jp, A comma-separated list of event ids that are associated to an event.

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