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Light earthquake: M4.8 quake has struck near Attu Station in Alaska

Posted by admin on July 2, 2015 0 Comments

Earthquake location 53.1083S, 173.0287WA light earthquake magnitude 4.8 (ml/mb) has struck on Wednesday, 31 km NNW of Attu Station, Alaska (19 miles). Exact location of event, longitude 173.0287 East, latitude 53.1083 North, depth = 23.49 km. Global date and time of event UTC/GMT: 02/07/15 / 2015-07-02 07:03:23 / July 2, 2015 @ 7:03 am. Unique identifier: us10002mzc. Ids that are associated to the event: us10002mzc. The earthquake occurred at a depth of 23.49 km (15 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 22:03:23 / 10:03 pm (local time epicenter).

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days two and in the last 365 days five earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel the quake?

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: 31 km NNW of Attu Station, Alaska.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude 173.0287° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.1083° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 23.49 km Depth of the event in kilometers.
Place 31km NNW of Attu Station, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-07-02 07:03:23 Time when the event occurred. UTC/GMT
Updated 2015-07-02 07:17:46 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 354 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 0.752 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.91 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 130 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 us10002mzc Id of event.
Event Code 10002mzc An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10002mzc, A comma-separated list of event ids that are associated to an event.

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