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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.8 mag strikes near Adak in Alaska

Earthquake location 51.5564S, -176.7712WA minor earthquake with magnitude 3.8 (ml/mb) was reported 36 km SSW of Adak, Alaska (22 miles) on Wednesday. The epicenter of the earthquake was roughly 68.55 km (43 miles) below the earth’s surface. All ids that are associated to the event: ak020573pygw, us70009cxi. Unique identifier: us70009cxi. Exact location of earthquake, -176.7712° West, 51.5564° North, depth 68.55 km. Global date and time of event UTC/GMT: 22/04/20 / 2020-04-22 13:42:48 / April 22, 2020 @ 1:42 pm. The 3.8-magnitude earthquake has occurred at 03:42:48 / 3:42 am (local time epicenter).

In the past 24 hours, there have been ten, in the last 10 days twelve, in the past 30 days twenty-six and in the last 365 days three hundred and thirty-nine earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world.

Did you feel anything?

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. 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: 36 km SSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 3.8 mb The magnitude for the event.
Longitude -176.7712° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.5564° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 68.55 km Depth of the event in kilometers.
Place 36km 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 2020-04-22 13:42:48 Time when the event occurred. UTC/GMT
Updated 2020-05-14 09:14:05 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 222 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 0.33 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.22 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 202 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 us70009cxi Id of event.
Event Code 70009cxi An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020573pygw,us70009cxi, A comma-separated list of event ids that are associated to an event.

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