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Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.8 mag, 30 km SE of Unalaska, Alaska

Earthquake location 53.6581S, -166.2432WA minor earthquake magnitude 3.8 (ml/mb) strikes 30 km SE of Unalaska, Alaska (19 miles) on Saturday. Date and time of earthquake in UTC/GMT: 21/11/20 / 2020-11-21 07:19:39 / November 21, 2020 @ 7:19 am. Event id: us6000crbc. Ids that are associated to the earthquake: ak020ez9hbxj, us6000crbc. The epicenter of the earthquake was roughly 75.67 km (47 miles) below the earth’s surface. Exact location of event, longitude -166.2432 West, latitude 53.6581 North, depth = 75.67 km. The temblor was picked up at 07:19:39 / 7:19 am (local time epicenter).

In the past 24 hours, there have been five, in the last 10 days eleven, in the past 30 days twenty-four and in the last 365 days one hundred and twenty-seven earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year.

Did you feel it?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 30 km SE of Unalaska, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.8 mb The magnitude for the event.
Longitude -166.2432° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.6581° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 75.67 km Depth of the event in kilometers.
Place 30 km SE of Unalaska, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-11-21 07:19:39 Time when the event occurred. UTC/GMT
Updated 2020-12-06 07:44:06 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 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 0.243 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.75 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 156 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us6000crbc Id of event.
Event Code 6000crbc An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020ez9hbxj,us6000crbc, A comma-separated list of event ids that are associated to an event.

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