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Moderate earthquake, 5.5 mag was detected near Amatignak Island in Alaska


Earthquake location 50.795S, -179.965WA moderate earthquake magnitude 5.5 (ml/mb) strikes 79 km SW of Amatignak Island, Alaska (49 miles) on Sunday. Event id: at00q4qk03. Ids that are associated to the earthquake: at00q4qk03. The earthquake occurred at a depth of 55 km (34 miles). Exact location of event, depth 55 km, -179.965° West, 50.795° North. Exact time and date of earthquake 26/01/20 / 2020-01-26 22:33:39 / January 26, 2020 @ 10:33 pm UTC/GMT. A tsunami warning has been issued near Amatignak Island in Alaska (Does not indicate if a tsunami actually did or will exist). The 5.5-magnitude earthquake was detected at 10:33:39 / 10:33 am (local time epicenter).

There are an estimated 1320 moderate earthquakes in the world each year. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been seventeen, in the last 10 days twenty-six, in the past 30 days thirty-one and in the last 365 days ninety-four 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: 79 km SW of Amatignak Island, Alaska.

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More information

Parameter Value Description
Magnitude 5.5 mb The magnitude for the event.
Longitude -179.965° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.795° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 55 km Depth of the event in kilometers.
Place 79km SW of Amatignak Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-01-26 22:33:39 Time when the event occurred. UTC/GMT
Updated 2020-01-26 22:40:18 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 465 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 44 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.7429067 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 230.399981568 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 at00q4qk03 Id of event.
Event Code 00q4qk03 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00q4qk03, A comma-separated list of event ids that are associated to an event.

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