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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.9 quake has struck near Sand Point in Alaska

Posted by admin on December 21, 2020 0 Comments

Earthquake location 54.4871S, -158.9694WA minor earthquake with magnitude 3.9 (ml/mb) was detected on Sunday, 136 km SE of Sand Point, Alaska (85 miles). Exact time and date of event in UTC/GMT: 20/12/20 / 2020-12-20 22:42:24 / December 20, 2020 @ 10:42 pm. All ids that are associated to the event: ak020gbh4sw0, us7000cst5. Unique identifier: us7000cst5. The epicenter was at a depth of 22.97 km (14 miles). Exact location of earthquake, -158.9694° West, 54.4871° North, depth 22.97 km. The 3.9-magnitude earthquake was detected at 22:42:24 / 10:42 pm (local time epicenter).

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. In the past 24 hours, there have been three, in the last 10 days fourteen, in the past 30 days ninety-four and in the last 365 days one thousand, two hundred and seventy-six earthquakes of magnitude 3.0 or greater that have been detected in the same area.

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 136 km SE of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -158.9694° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.4871° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 22.97 km Depth of the event in kilometers.
Place 136 km SE of Sand Point, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-12-20 22:42:24 Time when the event occurred. UTC/GMT
Updated 2020-12-21 23:29:40 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 234 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 0.498 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 207 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 us7000cst5 Id of event.
Event Code 7000cst5 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020gbh4sw0,us7000cst5, A comma-separated list of event ids that are associated to an event.

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