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Minor earthquake: M3 quake has struck near Atka in Alaska



Earthquake location 52.3672S, -172.969WA minor earthquake with magnitude 3 (ml/mb) was detected on Saturday, 86 km ENE of Atka, Alaska (53 miles). The 3-magnitude earthquake has occurred at 20:30:18 / 8:30 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 16/07/17 / 2017-07-16 08:30:18 / July 16, 2017 @ 8:30 am. The earthquake occurred at a depth of 213.3 km (133 miles) below the earth’s surface. Event ids that are associated to the earthquake: ak16426726, us2000a4cc. Id of event: us2000a4cc. Exact location of earthquake, longitude -172.969 West, latitude 52.3672 North, depth = 213.3 km.

Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been three, in the last 10 days five, in the past 30 days sixteen and in the last 365 days one hundred and ten earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 86 km ENE of Atka, Alaska.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -172.969° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.3672° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 213.3 km Depth of the event in kilometers.
Place 86km ENE 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 2017-07-16 08:30:18 Time when the event occurred. UTC/GMT
Updated 2017-08-13 04:50:01 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 0 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 138 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 ,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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.38 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000a4cc Id of event.
Event Code 2000a4cc An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16426726,us2000a4cc, A comma-separated list of event ids that are associated to an event.

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