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Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.9 mag, 46 km SSW of Tanaga Volcano, Alaska

Posted by admin on May 29, 2017 0 Comments

Earthquake location 51.5223S, -178.4834WA minor earthquake magnitude 3.9 (ml/mb) strikes 46 km SSW of Tanaga Volcano, Alaska (29 miles) on Thursday. The epicenter of the earthquake was roughly 1.29 km (1 miles) below the earth’s surface. Exact location of event, longitude -178.4834 West, latitude 51.5223 North, depth = 1.29 km. Global time and date of event 04/05/17 / 2017-05-04 21:43:37 / May 4, 2017 @ 9:43 pm UTC/GMT. Id of earthquake: us10008ub1. Event ids that are associated: ak15909751, us10008ub1. The 3.9-magnitude earthquake has occurred at 11:43:37 / 11:43 am (local time epicenter).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year. In the past 24 hours, there have been three hundred and seventy-seven, in the last 10 days three hundred and ninety-eight, in the past 30 days four hundred and four and in the last 365 days five hundred and twenty-eight earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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 SSW of Tanaga Volcano, Alaska.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -178.4834° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.5223° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.29 km Depth of the event in kilometers.
Place 46km SSW 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 2017-05-04 21:43:37 Time when the event occurred. UTC/GMT
Updated 2017-05-29 05:23:40 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 2.38 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 0.308 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.9 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 252 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 us10008ub1 Id of event.
Event Code 10008ub1 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15909751,us10008ub1, A comma-separated list of event ids that are associated to an event.

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