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Minor earthquake, 3.1 mag strikes near Juneau in Alaska


Earthquake location 58.3503S, -133.4611WA minor earthquake with magnitude 3.1 (ml/mb) was reported 56 kilometers (35 miles) from Juneau in Alaska on Wednesday. Unique identifier: us6000b5uw. Ids that are associated to the event: us6000b5uw. The temblor was detected at 05:34:11 / 5:34 am (local time epicenter). Global date and time of event UTC/GMT: 29/07/20 / 2020-07-29 05:34:11 / July 29, 2020 @ 5:34 am. The earthquake occurred at a depth of 5 km (3 miles) below the earth’s surface. Exact location of earthquake, -133.4611° West, 58.3503° North, depth 5 km.

Country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 56 km (35 miles) from Juneau (c. 31 300 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Juneau.

In the past 24 hours, there have been three, in the last 10 days twenty-one, in the past 30 days thirty and in the last 365 days thirty-two earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world.

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: 56 km E of Juneau, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -133.4611° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 58.3503° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 56 km E of Juneau, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-07-29 05:34:11 Time when the event occurred. UTC/GMT
Updated 2020-07-30 05:15:45 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 148 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 0.563 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.99 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 64 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 us6000b5uw Id of event.
Event Code 6000b5uw An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000b5uw, A comma-separated list of event ids that are associated to an event.

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