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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.2 mag, 5 km NNW of Changning, China


Earthquake location 28.6278S, 104.9092WA light earthquake magnitude 4.2 (ml/mb) has occurred on Tuesday, 5 kilometers (3 miles) from Changning in China. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 33.02 km (21 miles). Exact time and date of event in UTC/GMT: 17/03/20 / 2020-03-17 02:30:40 / March 17, 2020 @ 2:30 am. The temblor was picked up at 10:30:40 / 10:30 am (local time epicenter). Exact location of event, longitude 104.9092 East, latitude 28.6278 North, depth = 33.02 km. All ids that are associated to the event: us70008gxu. Unique identifier: us70008gxu.

Event epicenter was 80 km (50 miles) from Zigong (c. 690 000 pop), 32 km (20 miles) from Yibin (c. 242 100 pop), 27 km (17 miles) from Xunchang (c. 64 600 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Zigong, Yibin, Xunchang. Nearby country/countries, China (c. 1 330 044 000 pop) (That might be effected).

Each year there are an estimated 13,000 light quakes 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 fourty-seven earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel the quake?

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: 5 km NNW of Changning, China. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 104.9092° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 28.6278° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 33.02 km Depth of the event in kilometers.
Place 5km NNW of Changning, China Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-03-17 02:30:40 Time when the event occurred. UTC/GMT
Updated 2020-04-01 22:11:09 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 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 271 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 4.322 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.6 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 62 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 us70008gxu Id of event.
Event Code 70008gxu An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70008gxu, A comma-separated list of event ids that are associated to an event.

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