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Minor earthquake: M2.9 quake has struck near Sitka in Alaska

Posted by admin on September 30, 2019 0 Comments

Earthquake location 57.2312S, -136.352WA minor earthquake with magnitude 2.9 (ml/mb) was detected on Sunday, 64 kilometers (40 miles) from Sitka in Alaska. Exact time and date of earthquake 30/09/19 / 2019-09-30 08:39:36 / September 30, 2019 @ 8:39 am UTC/GMT. Event id: us70005nsr. Ids that are associated to the earthquake: us70005nsr. The temblor was reported at 23:39:36 / 11:39 pm (local time epicenter). The earthquake occurred at a depth of 10 km (6 miles). Exact location, longitude -136.352° West, latitude 57.2312° North, depth = 10 km.

Event epicenter was 65 km (40 miles) from Sitka (c. 8 900 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Sitka.

Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days 0 and in the last 365 days four earthquakes of magnitude 3.0 or greater that was reported nearby.

How would you describe the shaking?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 64 km WNW of Sitka, Alaska.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -136.352° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.2312° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 64km WNW of Sitka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-09-30 08:39:36 Time when the event occurred. UTC/GMT
Updated 2019-09-30 10:44:11 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 129 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 0.586 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 211 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 us70005nsr Id of event.
Event Code 70005nsr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70005nsr, A comma-separated list of event ids that are associated to an event.

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