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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.8 mag was detected near Unalaska in Alaska


Earthquake location 52.4302S, -165.237WA minor earthquake with magnitude 3.8 (ml/mb) was detected on Monday, 182 km SSE of Unalaska, Alaska (113 miles). Exact location of event, longitude -165.237 West, latitude 52.4302 North, depth = 12.82 km. Unique identifier: us10005ckm. Ids that are associated to the event: ak13504069, us10005ckm. The 3.8-magnitude earthquake was detected at 01:24:54 / 1:24 am (local time epicenter). The earthquake occurred at a depth of 12.82 km (8 miles) below the earth’s surface. Global time and date of event 25/04/16 / 2016-04-25 12:24:54 / April 25, 2016 @ 12:24 pm UTC/GMT.

Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days six and in the last 365 days eighteen earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 182 km SSE of Unalaska, Alaska.

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More information

Parameter Value Description
Magnitude 3.8 mb The magnitude for the event.
Longitude -165.237° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.4302° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12.82 km Depth of the event in kilometers.
Place 182km SSE of Unalaska, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-04-25 12:24:54 Time when the event occurred. UTC/GMT
Updated 2016-05-10 07:38:41 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 222 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 1.61 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 238 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 us10005ckm Id of event.
Event Code 10005ckm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13504069,us10005ckm, A comma-separated list of event ids that are associated to an event.

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