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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.9 mag strikes near Chignik in Alaska


Earthquake location 55.9987S, -156.4484WA minor earthquake magnitude 3.9 (ml/mb) strikes 125 km ESE of Chignik, Alaska (78 miles) on Monday. The epicenter of the earthquake was roughly 0.1 km (0 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 19/10/20 / 2020-10-19 21:30:09 / October 19, 2020 @ 9:30 pm. Exact location of event, longitude -156.4484 West, latitude 55.9987 North, depth = 0.1 km. The temblor was picked up at 21:30:09 / 9:30 pm (local time epicenter). Unique identifier: ak020dgx58ke. Ids that are associated to the event: ak020dgx58ke.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days twenty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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.

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. 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: 125 km ESE of Chignik, Alaska.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -156.4484° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 55.9987° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 0.1 km Depth of the event in kilometers.
Place 125 km ESE of Chignik, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-10-19 21:30:09 Time when the event occurred. UTC/GMT
Updated 2020-10-19 21:38:21 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 234 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 0.82 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 ak020dgx58ke Id of event.
Event Code 020dgx58ke An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020dgx58ke, A comma-separated list of event ids that are associated to an event.

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