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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag has occurred near Gongjing in China

Earthquake location 29.3957S, 104.5994WA light earthquake magnitude 4.4 (ml/mb) has occurred on Friday, 12 kilometers (7 miles) from Gongjing in China. The earthquake occurred at a depth of 41.57 km (26 miles) below the earth’s surface. Unique identifier: us1000h3c0. Ids that are associated to the event: us1000h3c0. Exact time and date of earthquake 21/09/18 / 2018-09-21 01:52:03 / September 21, 2018 @ 1:52 am UTC/GMT. The 4.4-magnitude earthquake has occurred at 09:52:03 / 9:52 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude 104.5994° East, latitude 29.3957° North, depth = 41.57 km.

Close country/countries that might be effected, China (c. 1 330 044 000 pop). Epicenter of the event was 18 km (11 miles) from Zigong (c. 690 000 pop), 49 km (31 miles) from Neijiang (c. 546 900 pop), 70 km (43 miles) from Yibin (c. 242 100 pop), 83 km (52 miles) from Leshan (c. 154 500 pop), 81 km (50 miles) from Yanjiang (c. 87 400 pop), 55 km (34 miles) from Luocheng (c. 73 600 pop). Closest city/cities/towns to epicentrum/hypocenter was Leshan, Yanjiang, Yibin (min 5000 pop).

There are an estimated 13,000 light quakes 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 one, in the last 10 days one, in the past 30 days one and in the last 365 days three earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 12 km WNW of Gongjing, China. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 104.5994° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 29.3957° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 41.57 km Depth of the event in kilometers.
Place 12km WNW of Gongjing, China Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-09-21 01:52:03 Time when the event occurred. UTC/GMT
Updated 2018-09-28 04:12:26 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 298 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 4.342 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.56 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 172 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 us1000h3c0 Id of event.
Event Code 1000h3c0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h3c0, A comma-separated list of event ids that are associated to an event.

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