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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.8 mag has occurred near Tanaga Volcano in Alaska

Earthquake location 51.6369S, -178.4276WA minor earthquake with magnitude 3.8 (ml/mb) was reported 33 km SW of Tanaga Volcano, Alaska (21 miles) on Sunday. Exact location of earthquake, longitude -178.4276 West, latitude 51.6369 North, depth = 19.41 km. The earthquake was roughly at a depth of 19.41 km (12 miles). Exact time and date of event in UTC/GMT: 22/05/17 / 2017-05-22 04:14:50 / May 22, 2017 @ 4:14 am. The 3.8-magnitude earthquake was detected at 18:14:50 / 6:14 pm (local time epicenter). Event id: us20009l56. Ids that are associated to the earthquake: ak16100213, us20009l56.

In the past 24 hours, there have been nine, in the last 10 days thirty-five, in the past 30 days five hundred and thirty-three and in the last 365 days six hundred and fifty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 33 km SW of Tanaga Volcano, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.8 mb The magnitude for the event.
Longitude -178.4276° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.6369° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 19.41 km Depth of the event in kilometers.
Place 33km 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 2017-05-22 04:14:50 Time when the event occurred. UTC/GMT
Updated 2017-06-12 23:16:48 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 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 0.247 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 184 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 us20009l56 Id of event.
Event Code 20009l56 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16100213,us20009l56, A comma-separated list of event ids that are associated to an event.

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