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Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.7 quake has struck near Amatignak Island in Alaska


Earthquake location 51.0657S, -179.7451WA minor earthquake magnitude 3.7 (ml/mb) has struck on Wednesday, 49 km WSW of Amatignak Island, Alaska (30 miles). The temblor was picked up at 05:48:40 / 5:48 am (local time epicenter). Exact time and date of event in UTC/GMT: 18/04/18 / 2018-04-18 17:48:40 / April 18, 2018 @ 5:48 pm. Id of earthquake: us1000dndm. Event ids that are associated: ak19242591, us1000dndm. Exact location of event, longitude -179.7451 West, latitude 51.0657 North, depth = 7.83 km. The earthquake was roughly at a depth of 7.83 km (5 miles).

There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been seven, in the last 10 days nine, in the past 30 days twenty and in the last 365 days five hundred and sixty-three earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 49 km WSW of Amatignak Island, Alaska.

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More information

Parameter Value Description
Magnitude 3.7 mb The magnitude for the event.
Longitude -179.7451° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.0657° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.83 km Depth of the event in kilometers.
Place 49km WSW of Amatignak Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-04-18 17:48:40 Time when the event occurred. UTC/GMT
Updated 2018-04-30 22:35:01 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 211 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 0.676 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.31 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 228 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us1000dndm Id of event.
Event Code 1000dndm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak19242591,us1000dndm, A comma-separated list of event ids that are associated to an event.

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