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Minor earthquake, 2.8 mag has occurred near Kodiak in Alaska

Posted by admin on April 21, 2018 0 Comments

Earthquake location 56.4472S, -148.641WA minor earthquake with magnitude 2.8 (ml/mb) was detected on Sunday, 272 km ESE of Kodiak, Alaska (169 miles). The epicenter was at a depth of 21.92 km (14 miles). Exact location of event, longitude -148.641 West, latitude 56.4472 North, depth = 21.92 km. Unique identifier: us1000dnex. Ids that are associated to the event: ak19242897, us1000dnex. The temblor was reported at 01:35:11 / 1:35 am (local time epicenter). Exact time and date of earthquake 15/04/18 / 2018-04-15 11:35:11 / April 15, 2018 @ 11:35 am UTC/GMT.

In the past 24 hours, there have been twenty-two, in the last 10 days one hundred and sixteen, in the past 30 days three hundred and fourty-two and in the last 365 days three thousand, one hundred and fourty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

How would you describe the shaking?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 272 km ESE of Kodiak, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -148.641° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.4472° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 21.92 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 2018-04-15 11:35:11 Time when the event occurred. UTC/GMT
Updated 2018-04-21 12:50:45 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 121 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 2.533 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.53 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 202 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 us1000dnex Id of event.
Event Code 1000dnex An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak19242897,us1000dnex, A comma-separated list of event ids that are associated to an event.

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