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Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.7 mag, 46 km SSE of Amukta Island, Alaska


Earthquake location 52.0943S, -171.0314WA minor earthquake with magnitude 3.7 (ml/mb) was reported 46 km SSE of Amukta Island, Alaska (29 miles) on Saturday. Unique identifier: us1000dwbr. Ids that are associated to the event: ak19293450, us1000dwbr. Exact location of event, depth 50.92 km, -171.0314° West, 52.0943° North. Global time and date of event 29/04/18 / 2018-04-29 00:09:36 / April 29, 2018 @ 12:09 am UTC/GMT. The epicenter was at a depth of 50.92 km (32 miles). The 3.7-magnitude earthquake was detected at 13:09:36 / 1:09 pm (local time epicenter).

Each year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been five, in the last 10 days eight, in the past 30 days thirteen and in the last 365 days one hundred and fifty-four earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 46 km SSE of Amukta Island, Alaska.

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More information

Parameter Value Description
Magnitude 3.7 mb The magnitude for the event.
Longitude -171.0314° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.0943° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 50.92 km Depth of the event in kilometers.
Place 46km SSE of Amukta 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 2018-04-29 00:09:36 Time when the event occurred. UTC/GMT
Updated 2018-05-26 04:42:46 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 1.008 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.09 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 181 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 us1000dwbr Id of event.
Event Code 1000dwbr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak19293450,us1000dwbr, A comma-separated list of event ids that are associated to an event.

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