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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.9 mag has occurred near Tanaga Volcano in Alaska



Earthquake location 51.6176S, -178.5266WA minor earthquake with magnitude 3.9 (ml/mb) was reported 39 km SW of Tanaga Volcano, Alaska (24 miles) on Saturday. Exact location of earthquake, longitude -178.5266 West, latitude 51.6176 North, depth = 3.5 km. The temblor was reported at 22:20:17 / 10:20 pm (local time epicenter). Global time and date of event 07/05/17 / 2017-05-07 08:20:17 / May 7, 2017 @ 8:20 am UTC/GMT. Event ids that are associated to the earthquake: ak15956061, us10008rvh. Id of event: us10008rvh. The earthquake occurred at a depth of 3.5 km (2 miles).

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

Questions or comments?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 39 km SW of Tanaga Volcano, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -178.5266° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.6176° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3.5 km Depth of the event in kilometers.
Place 39km SW of Tanaga Volcano, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-05-07 08:20:17 Time when the event occurred. UTC/GMT
Updated 2017-06-04 09:41:04 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 2.55 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 234 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.75 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 us10008rvh Id of event.
Event Code 10008rvh An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15956061,us10008rvh, A comma-separated list of event ids that are associated to an event.

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