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Moderate earthquake, 5.6 mag strikes near Nikolski in Alaska

Earthquake location 51.9341S, -169.7665WA moderate earthquake magnitude 5.6 (ml/mb) has struck on Sunday, 127 km SSW of Nikolski, Alaska (79 miles). The temblor was reported at 04:12:17 / 4:12 am (local time epicenter). The earthquake occurred at a depth of 13.77 km (9 miles). Exact location of event, longitude -169.7665 West, latitude 51.9341 North, depth = 13.77 km. Exact time and date of earthquake 27/09/20 / 2020-09-27 04:12:17 / September 27, 2020 @ 4:12 am UTC/GMT. A tsunami warning has been issued near Nikolski in Alaska (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: at00qhaucg, us6000c1tj. Id of event: us6000c1tj.

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 127 km SSW of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 5.6 mb The magnitude for the event.
Longitude -169.7665° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.9341° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13.77 km Depth of the event in kilometers.
Place 127 km SSW of Nikolski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-09-27 04:12:17 Time when the event occurred. UTC/GMT
Updated 2020-09-27 04:31:46 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 482 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 ,at,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 0.894 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.02 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 98 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us6000c1tj Id of event.
Event Code 6000c1tj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qhaucg,us6000c1tj, A comma-separated list of event ids that are associated to an event.

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