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Minor earthquake 2.9 mag, 70 km WSW of Atka, Alaska


Earthquake location 52.0137S, -175.1814WA minor earthquake with magnitude 2.9 (ml/mb) was reported 70 km WSW of Atka, Alaska (43 miles) on Saturday. The 2.9-magnitude earthquake was detected at 08:17:19 / 8:17 am (local time epicenter). The epicenter of the earthquake was roughly 118.32 km (74 miles) below the earth’s surface. Global date and time of event UTC/GMT: 27/10/18 / 2018-10-27 18:17:19 / October 27, 2018 @ 6:17 pm. Exact location, longitude -175.1814° West, latitude 52.0137° North, depth = 118.32 km. Event ids that are associated to the earthquake: ak20292379, us1000hj7e. Id of event: us1000hj7e.

In the past 24 hours, there have been one, in the last 10 days five, in the past 30 days nine and in the last 365 days one hundred and fourty-one earthquakes of magnitude 3.0 or greater that was reported nearby. Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Questions or comments?

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: 70 km WSW of Atka, Alaska.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -175.1814° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.0137° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 118.32 km Depth of the event in kilometers.
Place 70km WSW 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 2018-10-27 18:17:19 Time when the event occurred. UTC/GMT
Updated 2018-10-30 19:47:36 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 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 129 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 0.461 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.39 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 189 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 us1000hj7e Id of event.
Event Code 1000hj7e An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20292379,us1000hj7e, A comma-separated list of event ids that are associated to an event.

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