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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Zigong in China


Earthquake location 29.4076S, 104.7897WA light earthquake magnitude 4.2 (ml/mb) strikes 7 kilometers (4 miles) from Zigong in China on Wednesday. Unique identifier: us6000q6me. Ids that are associated to the event: us6000q6me. The epicenter was at a depth of 10 km (6 miles). The 4.2-magnitude earthquake has occurred at 22:46:19 / 10:46 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 104.7897 East, latitude 29.4076 North, depth = 10 km. Exact time and date of event in UTC/GMT: 16/04/25 / 2025-04-16 22:46:19 / April 16, 2025 @ 10:46 pm.

Country/countries that might be effected, China (c. 1 330 044 000 pop). Event epicenter was 7 km (5 miles) from Zigong (c. 690 000 pop), 33 km (20 miles) from Neijiang (c. 546 900 pop), 73 km (45 miles) from Yibin (c. 242 100 pop), 81 km (50 miles) from Yanjiang (c. 87 400 pop), 74 km (46 miles) from Luocheng (c. 73 600 pop), 42 km (26 miles) from Chonglong (c. 58 400 pop). Closest city/cities/towns to epicentrum/hypocenter was Yanjiang, Luocheng, Yibin (min 5000 pop).

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

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: 7 km N of Zigong, 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 104.7897° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 29.4076° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 7 km N of Zigong, China Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-04-16 22:46:19 Time when the event occurred. UTC/GMT
Updated 2025-05-12 00:41:32 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 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 28 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 4.178 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.5 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 150 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 us6000q6me Id of event.
Event Code 6000q6me An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000q6me, A comma-separated list of event ids that are associated to an event.

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