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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Naxi in China


Earthquake location 28.8051S, 105.2706WA light earthquake magnitude 4.3 (ml/mb) has occurred on Sunday, 9 kilometers (6 miles) from Naxi in China. The temblor was picked up at 08:40:37 / 8:40 am (local time epicenter). The earthquake was roughly at a depth of 10 km (6 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 25/03/18 / 2018-03-25 00:40:37 / March 25, 2018 @ 12:40 am UTC/GMT. Event id: us1000db0f. Ids that are associated to the earthquake: us1000db0f. Exact location, longitude 105.2706° East, latitude 28.8051° North, depth = 10 km.

Nearby country/countries that might be effected, China (c. 1 330 044 000 pop). Epicenter of the event was 77 km (48 miles) from Zigong (c. 690 000 pop), 89 km (55 miles) from Neijiang (c. 546 900 pop), 63 km (39 miles) from Yibin (c. 242 100 pop), 86 km (53 miles) from Yongchuan (c. 94 500 pop), 67 km (42 miles) from Xunchang (c. 64 600 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Neijiang, Yongchuan, Zigong.

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 two, in the past 30 days two and in the last 365 days six earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 9 km WNW of Naxi, China.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 105.2706° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 28.8051° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 9km WNW of Naxi, China Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-03-25 00:40:37 Time when the event occurred. UTC/GMT
Updated 2018-04-22 16:35:22 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2.7 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 285 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 3.961 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.81 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 us1000db0f Id of event.
Event Code 1000db0f An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000db0f, A comma-separated list of event ids that are associated to an event.

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