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Minor earthquake: M3.3 quake has struck near Little Sitkin Island in Alaska

Posted by admin on August 22, 2015 0 Comments

Earthquake location 51.2949S, 178.745WA minor earthquake magnitude 3.3 (ml/mb) has struck on Sunday, 74 km SSE of Little Sitkin Island, Alaska (46 miles). Exact location, longitude 178.745° East, latitude 51.2949° North, depth = 13.51 km. The temblor was picked up at 23:13:51 / 11:13 pm (local time epicenter). Global time and date of event 02/08/15 / 2015-08-02 11:13:51 / August 2, 2015 @ 11:13 am UTC/GMT. The earthquake was roughly at a depth of 13.51 km (8 miles). Id of earthquake: us100030xv. Event ids that are associated: us100030xv, ak11667573.

In the past 24 hours, there have been eight, in the last 10 days eight, in the past 30 days fifteen and in the last 365 days one hundred and sixty-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year.

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. 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: 74 km SSE of Little Sitkin Island, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude 178.745° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.2949° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13.51 km Depth of the event in kilometers.
Place 74km SSE of Little Sitkin 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 2015-08-02 11:13:51 Time when the event occurred. UTC/GMT
Updated 2015-08-22 06:40:53 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 168 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,ak, 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 0.357 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 210 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 us100030xv Id of event.
Event Code 100030xv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100030xv,ak11667573, A comma-separated list of event ids that are associated to an event.

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