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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Fox Islands, Aleutian Islands, Alaska

Posted by admin on August 3, 2015 0 Comments

Earthquake location 52.1025S, -169.2838WA light earthquake magnitude 4.2 (ml/mb) has struck on Tuesday, Fox Islands, Aleutian Islands, Alaska (0 miles). Global date and time of event UTC/GMT: 28/07/15 / 2015-07-28 21:21:08 / July 28, 2015 @ 9:21 pm. Exact location of event, longitude -169.2838 West, latitude 52.1025 North, depth = 37 km. The 4.2-magnitude earthquake was detected at 21:21:08 / 9:21 pm (local time epicenter). Event id: ak11661233. Ids that are associated to the earthquake: ak11661233. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 37 km (23 miles).

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: Fox Islands, Aleutian Islands, Alaska.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -169.2838° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1025° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 37 km Depth of the event in kilometers.
Place Fox Islands, Aleutian Islands, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-07-28 21:21:08 Time when the event occurred. UTC/GMT
Updated 2015-08-03 17:39:05 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 271 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, A comma-separated list of network contributors.
Number of Stations Used 12 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.56 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 233.99998128 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 ak11661233 Id of event.
Event Code 11661233 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11661233, A comma-separated list of event ids that are associated to an event.

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