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Light earthquake: M4.1 quake has struck near Nikolski in Alaska

Posted by admin on August 19, 2015 0 Comments

Earthquake location 52.2797S, -169.4816WA light earthquake with magnitude 4.1 (ml/mb) was reported 84 km SSW of Nikolski, Alaska (52 miles) on Wednesday. The temblor was detected at 10:13:49 / 10:13 am (local time epicenter). Global date and time of event UTC/GMT: 19/08/15 / 2015-08-19 21:13:49 / August 19, 2015 @ 9:13 pm. Event ids that are associated to the earthquake: us100033h2. Id of event: us100033h2. The earthquake was roughly at a depth of 36.56 km (23 miles). Exact location, longitude -169.4816° West, latitude 52.2797° North, depth = 36.56 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 84 km SSW of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -169.4816° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.2797° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 36.56 km Depth of the event in kilometers.
Place 84km SSW of Nikolski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-08-19 21:13:49 Time when the event occurred. UTC/GMT
Updated 2015-08-19 21:56:30 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 259 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 0.791 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.82 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 204 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 us100033h2 Id of event.
Event Code 100033h2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100033h2, A comma-separated list of event ids that are associated to an event.

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