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Light earthquake: M4.3 quake has struck near Asenovgrad in Bulgaria


Earthquake location 42.0321S, 24.9119WA light earthquake with magnitude 4.3 (ml/mb) was detected on Thursday, 4 kilometers (2 miles) from Asenovgrad in Bulgaria. The epicenter was at a depth of 8.28 km (5 miles). Date and time of earthquake in UTC/GMT: 21/02/18 / 2018-02-21 23:41:59 / February 21, 2018 @ 11:41 pm. The temblor was picked up at 01:41:59 / 1:41 am (local time epicenter). Exact location of event, depth 8.28 km, 24.9119° East, 42.0321° North. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us2000d66r. Id of event: us2000d66r.

Closest city/cities/towns to epicentrum/hypocenter was Radnevo, Krumovgrad, Kharmanli (min 5000 pop). Earthquake epicenter was 19 km (12 miles) from Plovdiv (c. 340 500 pop), 75 km (46 miles) from Stara Zagora (c. 143 400 pop), 54 km (34 miles) from Haskovo (c. 79 700 pop), 51 km (32 miles) from Pazardzhik (c. 76 000 pop), 76 km (47 miles) from Kazanlŭk (c. 55 200 pop), 4 km (3 miles) from Asenovgrad (c. 52 200 pop). Country/countries that might be effected, Bulgaria (c. 7 149 000 pop).

Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days two earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 4 km ENE of Asenovgrad, Bulgaria. This data 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 24.9119° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.0321° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.28 km Depth of the event in kilometers.
Place 4km ENE of Asenovgrad, Bulgaria Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-21 23:41:59 Time when the event occurred. UTC/GMT
Updated 2018-02-22 00:08:52 Time when the event was most recently updated. UTC/GMT
Timezone offset 120 Timezone offset from UTC in minutes at the event epicenter.
Felt 38 The total number of felt reports
CDI 4.1 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 300 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 1.002 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.07 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 50 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 us2000d66r Id of event.
Event Code 2000d66r An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d66r, A comma-separated list of event ids that are associated to an event.

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