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Moderate earthquake, 5.3 mag strikes near Atka in Alaska


Earthquake location 51.94S, -173.588WA moderate earthquake magnitude 5.3 (ml/mb) has occurred on Sunday, 50 km SE of Atka, Alaska (31 miles). Exact location of earthquake, -173.588° West, 51.94° North, depth 56 km. Date and time of earthquake in UTC/GMT: 02/11/15 / 2015-11-02 08:31:21 / November 2, 2015 @ 8:31 am. A tsunami warning has been issued near Atka in Alaska (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 22:31:21 / 10:31 pm (local time epicenter). The earthquake was roughly at a depth of 56 km (35 miles). All ids that are associated to the event: at00nx6ic9. Unique identifier: at00nx6ic9.

In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days eight and in the last 365 days one hundred and sixty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 50 km SE of Atka, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.3 mb The magnitude for the event.
Longitude -173.588° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.94° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 56 km Depth of the event in kilometers.
Place 50km SE of Atka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-11-02 08:31:21 Time when the event occurred. UTC/GMT
Updated 2015-11-02 08:43:54 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 432 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 40 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.45903911 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.58 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 198 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 at00nx6ic9 Id of event.
Event Code 00nx6ic9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00nx6ic9, A comma-separated list of event ids that are associated to an event.

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