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Minor earthquake, 3.1 mag has occurred near Kodiak in Alaska


Earthquake location 56.4714S, -148.6086WA minor earthquake magnitude 3.1 (ml/mb) has occurred on Saturday, 272 km ESE of Kodiak, Alaska (169 miles). Exact time and date of earthquake 12/08/18 / 2018-08-12 07:17:55 / August 12, 2018 @ 7:17 am UTC/GMT. Exact location of event, longitude -148.6086 West, latitude 56.4714 North, depth = 20.01 km. The temblor was picked up at 21:17:55 / 9:17 pm (local time epicenter). The earthquake occurred at a depth of 20.01 km (12 miles) below the earth’s surface. Id of earthquake: us1000gc8x. Event ids that are associated: ak20111031, us1000gc8x.

Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been twenty-eight, in the last 10 days fifty-three, in the past 30 days one hundred and one and in the last 365 days three thousand, six hundred and ninety-six earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Did you feel the quake?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 272 km ESE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -148.6086° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.4714° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20.01 km Depth of the event in kilometers.
Place 272km ESE of Kodiak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-12 07:17:55 Time when the event occurred. UTC/GMT
Updated 2018-09-07 07:41:13 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 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 2.534 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 212 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 us1000gc8x Id of event.
Event Code 1000gc8x An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20111031,us1000gc8x, A comma-separated list of event ids that are associated to an event.

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