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Moderate earthquake 5.5 mag, 57 km E of Atka, Alaska



Earthquake location 52.1729S, -173.3643WA moderate earthquake magnitude 5.5 (ml/mb) strikes 57 km E of Atka, Alaska (35 miles) on Wednesday. Exact location of event, longitude -173.3643 West, latitude 52.1729 North, depth = 58.17 km. The earthquake occurred at a depth of 58.17 km (36 miles). Event ids that are associated to the earthquake: at00om4tme, ak15424918, us100085xq. Id of event: us100085xq. 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 00:39:49 / 12:39 am (local time epicenter). Date and time of earthquake in UTC/GMT: 01/03/17 / 2017-03-01 10:39:49 / March 1, 2017 @ 10:39 am.

In the past 24 hours, there have been two, in the last 10 days seven, in the past 30 days fourteen and in the last 365 days two hundred earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 57 km E of Atka, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.5 mb The magnitude for the event.
Longitude -173.3643° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1729° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 58.17 km Depth of the event in kilometers.
Place 57km E 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 2017-03-01 10:39:49 Time when the event occurred. UTC/GMT
Updated 2017-03-01 11:01:58 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 3.73 The maximum estimated instrumental intensity for the event.
Alert Level green 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 us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at,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 2.071 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.21 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 93 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 us100085xq Id of event.
Event Code 100085xq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00om4tme,ak15424918,us100085xq, A comma-separated list of event ids that are associated to an event.

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