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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near Longwu in China


Earthquake location 24.0398S, 102.3396WA light earthquake magnitude 4.4 (ml/mb) strikes 7 kilometers (4 miles) from Longwu in China on Monday. The earthquake was roughly at a depth of 10 km (6 miles). Exact location, longitude 102.3396° East, latitude 24.0398° North, depth = 10 km. Event id: us1000gbc9. Ids that are associated to the earthquake: us1000gbc9. Global date and time of event UTC/GMT: 12/08/18 / 2018-08-12 17:49:23 / August 12, 2018 @ 5:49 pm. The temblor was detected at 01:49:23 / 1:49 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearby country/countries that might be effected, China (c. 1 330 044 000 pop). Epicenter of the event was 86 km (53 miles) from Haikou (c. 112 600 pop), 41 km (25 miles) from Yuxi (c. 103 800 pop), 73 km (45 miles) from Longquan (c. 91 500 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Haikou, Longquan, Yuxi.

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

Questions or comments?

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. 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: 7 km NW of Longwu, China.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 102.3396° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 24.0398° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 7km NW of Longwu, China Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-12 17:49:23 Time when the event occurred. UTC/GMT
Updated 2018-08-27 13:42:13 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 3.064 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.17 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 122 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 us1000gbc9 Id of event.
Event Code 1000gbc9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000gbc9, A comma-separated list of event ids that are associated to an event.

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