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Moderate earthquake: M5.7 quake has struck near Adak in Alaska

Posted by admin on January 3, 2021 0 Comments

Earthquake location 50.881S, -179.8959WA moderate earthquake magnitude 5.7 (ml/mb) has occurred on Sunday, 252 km WSW of Adak, Alaska (157 miles). The temblor was detected at 12:38:48 / 12:38 pm (local time epicenter). A tsunami warning has been issued near Adak in Alaska (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 03/01/21 / 2021-01-03 12:38:48 / January 3, 2021 @ 12:38 pm. Exact location of event, depth 42 km, -179.8959° West, 50.881° North. The epicenter of the earthquake was roughly 42 km (26 miles) below the earth’s surface. Event id: at00qmcz4o. Ids that are associated to the earthquake: at00qmcz4o.

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days six and in the last 365 days one hundred and ninety-three earthquakes of magnitude 3.0 or greater that have been detected nearby. Every year there are an estimated 1320 moderate earthquakes in the world.

Questions or comments?

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: 252 km WSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 5.7 mb The magnitude for the event.
Longitude -179.8959° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.881° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42 km Depth of the event in kilometers.
Place 252 km WSW 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 2021-01-03 12:38:48 Time when the event occurred. UTC/GMT
Updated 2021-01-03 12:47:21 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 REVIEWED Indicates whether the event has been reviewed by a human.
Tsunami 1 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 500 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 33 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.791789 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.46 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 219.599982432 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Mi The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID at00qmcz4o Id of event.
Event Code 00qmcz4o An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qmcz4o, A comma-separated list of event ids that are associated to an event.

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