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Minor earthquake: M3.3 quake has struck near Juneau in Alaska

Earthquake location 58.3562S, -133.4703WA minor earthquake with magnitude 3.3 (ml/mb) was reported 55 kilometers (34 miles) from Juneau in Alaska on Tuesday. The earthquake was roughly at a depth of 1 km (1 miles). Global date and time of event UTC/GMT: 21/07/20 / 2020-07-21 17:37:38 / July 21, 2020 @ 5:37 pm. The 3.3-magnitude earthquake has occurred at 17:37:38 / 5:37 pm (local time epicenter). Exact location of earthquake, longitude -133.4703 West, latitude 58.3562 North, depth = 1 km. Id of earthquake: us7000asge. Event ids that are associated: us7000asge.

Nearest cities/city/towns to hypocenter/epicentrum was Juneau (min 5000 pop). Earthquake epicenter was 56 km (35 miles) from Juneau (c. 31 300 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

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

Did you feel the quake?

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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 55 km E of Juneau, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -133.4703° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 58.3562° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1 km Depth of the event in kilometers.
Place 55 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 2020-07-21 17:37:38 Time when the event occurred. UTC/GMT
Updated 2020-07-21 18:40:52 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 168 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 0.559 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.56 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 57 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 ice quake Type of seismic event.
Event ID us7000asge Id of event.
Event Code 7000asge An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000asge, A comma-separated list of event ids that are associated to an event.

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