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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4 mag, 95 km S of Atka, Alaska


Earthquake location 51.3512S, -174.4013WA light earthquake magnitude 4 (ml/mb) strikes 95 km S of Atka, Alaska (59 miles) on Friday. The earthquake was roughly at a depth of 13.8 km (9 miles). Exact location of earthquake, -174.4013° West, 51.3512° North, depth 13.8 km. The temblor was picked up at 19:42:21 / 7:42 pm (local time epicenter). All ids that are associated to the event: ak11692620. Unique identifier: ak11692620. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 05/09/15 / 2015-09-05 07:42:21 / September 5, 2015 @ 7:42 am.

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

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 95 km S of Atka, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -174.4013° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.3512° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13.8 km Depth of the event in kilometers.
Place 95km S 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 2015-09-05 07:42:21 Time when the event occurred. UTC/GMT
Updated 2015-09-12 01:13:40 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 246 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 15 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 0.36 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 259.199979264 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 ak11692620 Id of event.
Event Code 11692620 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11692620, A comma-separated list of event ids that are associated to an event.

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