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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.6 mag, 5 km SSE of Big Lake, Alaska

Earthquake location 61.4786S, -149.9231WA light earthquake magnitude 4.6 (ml/mb) has struck on Friday, 5 kilometers (3 miles) from Big Lake in Alaska. Exact time and date of event in UTC/GMT: 30/11/18 / 2018-11-30 17:32:36 / November 30, 2018 @ 5:32 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: ak20463263. Ids that are associated to the earthquake: ak20463263. The earthquake was roughly at a depth of 37.2 km (23 miles). Exact location of event, longitude -149.9231 West, latitude 61.4786 North, depth = 37.2 km. The 4.6-magnitude earthquake was detected at 08:32:36 / 8:32 am (local time epicenter).

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Palmer, Gateway, Lakes. Epicenter of the event was 29 km (18 miles) from Anchorage (c. 291 800 pop), 26 km (16 miles) from Eagle River (c. 24 800 pop), 18 km (11 miles) from Knik-Fairview (c. 14 900 pop), 36 km (22 miles) from Lakes (c. 8 400 pop), 31 km (19 miles) from Tanaina (c. 8 200 pop), 28 km (17 miles) from Wasilla (c. 7 800 pop), 24 km (15 miles) from Meadow Lakes (c. 7 600 pop).

Each year there are an estimated 13,000 light quakes 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 three hundred and fifty-two, in the last 10 days three hundred and fifty-three, in the past 30 days three hundred and fifty-four and in the last 365 days four hundred and fifteen earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage 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: 5 km SSE of Big Lake, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -149.9231° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.4786° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 37.2 km Depth of the event in kilometers.
Place 5km SSE of Big Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-11-30 17:32:36 Time when the event occurred. UTC/GMT
Updated 2018-12-08 00:33:57 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 18 The total number of felt reports
CDI 7.2 The maximum reported intensity for the event.
MMI 3.51 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 338 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 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 0.54 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 ak20463263 Id of event.
Event Code 20463263 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20463263, A comma-separated list of event ids that are associated to an event.

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