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Minor earthquake, 3.1 mag strikes near Adak in Alaska


Earthquake location 51.5298S, -176.1238WA minor earthquake magnitude 3.1 (ml/mb) has occurred on Saturday, 53 km SE of Adak, Alaska (33 miles). The earthquake was roughly at a depth of 29.16 km (18 miles). The 3.1-magnitude earthquake was detected at 20:42:10 / 8:42 pm (local time epicenter). Exact location of event, depth 29.16 km, -176.1238° West, 51.5298° North. Exact time and date of event in UTC/GMT: 14/10/18 / 2018-10-14 08:42:10 / October 14, 2018 @ 8:42 am. Event ids that are associated to the earthquake: ak20280687, us1000hfse. Id of event: us1000hfse.

There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been seven, in the last 10 days eight, in the past 30 days eleven and in the last 365 days one hundred and thirty-six earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 53 km SE of Adak, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -176.1238° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.5298° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 29.16 km Depth of the event in kilometers.
Place 53km SE of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-14 08:42:10 Time when the event occurred. UTC/GMT
Updated 2018-11-09 13:02:07 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 148 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 0.482 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.41 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 209 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 us1000hfse Id of event.
Event Code 1000hfse An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20280687,us1000hfse, A comma-separated list of event ids that are associated to an event.

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