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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4 mag, 22 km ESE of Zhaotong, China

Earthquake location 27.2697S, 103.9353WA light earthquake with magnitude 4 (ml/mb) was detected on Wednesday, 22 kilometers (14 miles) from Zhaotong in China. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. The temblor was detected at 20:52:48 / 8:52 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us7000c9s3. Ids that are associated to the event: us7000c9s3. Exact time and date of earthquake 28/10/20 / 2020-10-28 20:52:48 / October 28, 2020 @ 8:52 pm UTC/GMT. Exact location, longitude 103.9353° East, latitude 27.2697° North, depth = 10 km.

The epicenter was 22 km (14 miles) from Zhaotong (c. 109 400 pop), 55 km (34 miles) from Weining (c. 56 700 pop). Nearest cities/city/towns to hypocenter/epicentrum was Weining, Zhaotong (min 5000 pop). Country/countries that might be effected, China (c. 1 330 044 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. 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 two and in the last 365 days nine earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel it?

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. 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: 22 km ESE of Zhaotong, China.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 103.9353° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 27.2697° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 22 km ESE of Zhaotong, China Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-10-28 20:52:48 Time when the event occurred. UTC/GMT
Updated 2020-11-10 16:36:04 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 246 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 5.725 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.97 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 87 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 us7000c9s3 Id of event.
Event Code 7000c9s3 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000c9s3, A comma-separated list of event ids that are associated to an event.

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