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Minor earthquake 3.1 mag, 45 km SSE of Akhiok, Alaska

Earthquake location 56.5788S, -153.8483WA minor earthquake magnitude 3.1 (ml/mb) strikes 45 km SSE of Akhiok, Alaska (28 miles) on Tuesday. The earthquake was roughly at a depth of 24.4 km (15 miles). Date and time of earthquake in UTC/GMT: 11/08/20 / 2020-08-11 08:20:29 / August 11, 2020 @ 8:20 am. All ids that are associated to the event: ak020aal9k1r. Unique identifier: ak020aal9k1r. The 3.1-magnitude earthquake was detected at 08:20:29 / 8:20 am (local time epicenter). Exact location of event, longitude -153.8483 West, latitude 56.5788 North, depth = 24.4 km.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days fourty-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 130,000 minor quakes in the world each year. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 45 km SSE of Akhiok, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -153.8483° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.5788° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.4 km Depth of the event in kilometers.
Place 45 km SSE of Akhiok, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-08-11 08:20:29 Time when the event occurred. UTC/GMT
Updated 2020-08-11 08:27:47 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 automatic 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 ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.17 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 ak020aal9k1r Id of event.
Event Code 020aal9k1r An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020aal9k1r, A comma-separated list of event ids that are associated to an event.

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