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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Khorugh in Tajikistan

Earthquake location 37.2504S, 71.6326WA light earthquake with magnitude 4.3 (ml/mb) was detected on Saturday, 27 kilometers (17 miles) from Khorugh in Tajikistan. Id of earthquake: us7000ddjy. Event ids that are associated: us7000ddjy. Exact location of event, longitude 71.6326 East, latitude 37.2504 North, depth = 65.71 km. The 4.3-magnitude earthquake was detected at 01:47:53 / 1:47 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 20/02/21 / 2021-02-20 01:47:53 / February 20, 2021 @ 1:47 am UTC/GMT. The earthquake was roughly at a depth of 65.71 km (41 miles).

Earthquake epicenter was 28 km (17 miles) from Khorugh (c. 30 000 pop), 58 km (36 miles) from Ishqoshim (c. 26 000 pop), 64 km (40 miles) from Ashkāsham (c. 12 100 pop), 83 km (51 miles) from Jurm (c. 12 100 pop), 69 km (43 miles) from Khandūd (c. 5 500 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Jurm, Khandūd, Ashkāsham. Close country/countries that might be effected, Afghanistan (c. 29 121 000 pop), Tajikistan (c. 7 487 000 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 two, in the last 10 days five, in the past 30 days eleven and in the last 365 days one hundred and twenty-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 27 km SSE of Khorugh, Tajikistan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 71.6326° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.2504° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 65.71 km Depth of the event in kilometers.
Place 27 km SSE of Khorugh, Tajikistan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-02-20 01:47:53 Time when the event occurred. UTC/GMT
Updated 2021-02-25 22:36:45 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 284 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 2.233 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.8 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 105 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000ddjy Id of event.
Event Code 7000ddjy An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000ddjy, A comma-separated list of event ids that are associated to an event.

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