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Light earthquake 4.4 mag, 21 km NNE of Y, Alaska

Earthquake location 62.3438S, -149.7041WA light earthquake with magnitude 4.4 (ml/mb) was detected on Monday, 21 kilometers (13 miles) from Y in Alaska. Exact location of earthquake, -149.7041° West, 62.3438° North, depth 52.7 km. A tsunami warning has been issued near Y in Alaska (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 21/07/15 / 2015-07-21 03:08:32 / July 21, 2015 @ 3:08 am. The temblor was picked up at 19:08:32 / 7:08 pm (local time epicenter). Event id: ak11651501. Ids that are associated to the earthquake: at00nrti29, ak11651501. The earthquake occurred at a depth of 52.7 km (33 miles).

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Earthquake epicenter was 93 km (58 miles) from Knik-Fairview (c. 14 900 pop), 84 km (52 miles) from Lakes (c. 8 400 pop), 81 km (50 miles) from Tanaina (c. 8 200 pop), 86 km (53 miles) from Wasilla (c. 7 800 pop), 80 km (50 miles) from Meadow Lakes (c. 7 600 pop), 88 km (55 miles) from Palmer (c. 5 900 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Knik-Fairview, Gateway, Palmer.

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

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 21 km NNE of Y, Alaska.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -149.7041° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 62.3438° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 52.7 km Depth of the event in kilometers.
Place 21km NNE of Y, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-07-21 03:08:32 Time when the event occurred. UTC/GMT
Updated 2015-07-21 03:46:53 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 39 The total number of felt reports
CDI 3.1 The maximum reported intensity for the event.
MMI 3.46 The maximum estimated instrumental intensity for the event.
Alert Level green 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 1 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 310 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 ,at,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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.49 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 ak11651501 Id of event.
Event Code 11651501 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00nrti29,ak11651501, A comma-separated list of event ids that are associated to an event.

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