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Light earthquake 4.5 mag, 110 km SSW of Atka, Alaska

Posted by admin on September 4, 2015 0 Comments

Earthquake location 51.3603S, -175.0536WA light earthquake with magnitude 4.5 (ml/mb) was reported 110 km SSW of Atka, Alaska (68 miles) on Friday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 46.35 km (29 miles). The 4.5-magnitude earthquake has occurred at 01:35:37 / 1:35 am (local time epicenter). Global time and date of event 04/09/15 / 2015-09-04 13:35:37 / September 4, 2015 @ 1:35 pm UTC/GMT. Unique identifier: us20003g9m. Ids that are associated to the event: us20003g9m. Exact location of earthquake, -175.0536° West, 51.3603° North, depth 46.35 km.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been seven, in the last 10 days thirteen, in the past 30 days twenty-seven and in the last 365 days one hundred and sixteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light quakes in the world.

How would you describe the shaking?

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. 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: 110 km SSW of Atka, Alaska.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -175.0536° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.3603° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 46.35 km Depth of the event in kilometers.
Place 110km SSW of Atka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-04 13:35:37 Time when the event occurred. UTC/GMT
Updated 2015-09-04 14:23:30 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 312 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 ,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 0.965 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.38 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 us20003g9m Id of event.
Event Code 20003g9m An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003g9m, A comma-separated list of event ids that are associated to an event.

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