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Light earthquake 4.5 mag, 20 km NNE of Y, Alaska

Earthquake location 62.315S, -149.649WA light earthquake with magnitude 4.5 (ml/mb) was reported 20 kilometers (12 miles) from Y in Alaska on Monday. A tsunami warning has been issued near Y in Alaska (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 21/07/15 / 2015-07-21 03:08:33 / July 21, 2015 @ 3:08 am. Exact location of earthquake, -149.649° West, 62.315° North, depth 47 km. The temblor was reported at 19:08:33 / 7:08 pm (local time epicenter). The earthquake was roughly at a depth of 47 km (29 miles). Id of earthquake: at00nrti29. Event ids that are associated: at00nrti29.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Knik-Fairview, Gateway, Palmer. Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Epicenter of the earthquake was 89 km (55 miles) from Knik-Fairview (c. 14 900 pop), 81 km (50 miles) from Lakes (c. 8 400 pop), 77 km (48 miles) from Tanaina (c. 8 200 pop), 82 km (51 miles) from Wasilla (c. 7 800 pop), 77 km (48 miles) from Meadow Lakes (c. 7 600 pop), 84 km (52 miles) from Palmer (c. 5 900 pop), 85 km (53 miles) from Gateway (c. 5 600 pop).

There are an estimated 13,000 light earthquakes 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 one, in the last 10 days two, in the past 30 days seven and in the last 365 days one hundred and twelve earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 20 km NNE of Y, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -149.649° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 62.315° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 47 km Depth of the event in kilometers.
Place 20km 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 03:08:33 Time when the event occurred. UTC/GMT
Updated 2015-07-21 03:16:44 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 11 The total number of felt reports
CDI 2.8 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 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 315 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 45 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.310642 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.68 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 43.2 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 at00nrti29 Id of event.
Event Code 00nrti29 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00nrti29, A comma-separated list of event ids that are associated to an event.

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