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Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.7 mag, 53 km SSE of Semisopochnoi Island, Alaska

Earthquake location 51.5273S, 179.9793WA minor earthquake with magnitude 3.7 (ml/mb) was detected on Saturday, 53 km SSE of Semisopochnoi Island, Alaska (33 miles). The temblor was detected at 10:39:36 / 10:39 am (local time epicenter). The earthquake occurred at a depth of 72.71 km (45 miles). Global time and date of event 10/08/18 / 2018-08-10 22:39:36 / August 10, 2018 @ 10:39 pm UTC/GMT. Exact location, longitude 179.9793° East, latitude 51.5273° North, depth = 72.71 km. Event id: us1000gbup. Ids that are associated to the earthquake: ak20057624, us1000gbup.

Every 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 ten, in the past 30 days fourteen and in the last 365 days ninety-one earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel anything?

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. 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: 53 km SSE of Semisopochnoi Island, Alaska.

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More information

Parameter Value Description
Magnitude 3.7 mb The magnitude for the event.
Longitude 179.9793° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.5273° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 72.71 km Depth of the event in kilometers.
Place 53km SSE of Semisopochnoi 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 2018-08-10 22:39:36 Time when the event occurred. UTC/GMT
Updated 2018-08-26 21:49:28 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 0.45 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.24 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 172 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 us1000gbup Id of event.
Event Code 1000gbup An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20057624,us1000gbup, A comma-separated list of event ids that are associated to an event.

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