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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.2 quake has struck near Junlian in China


Earthquake location 28.0952S, 104.6884WA light earthquake magnitude 4.2 (ml/mb) strikes 19 kilometers (12 miles) from Junlian in China on Sunday. The epicenter of the earthquake was roughly 31.79 km (20 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 104.6884 East, latitude 28.0952 North, depth = 31.79 km. Global date and time of event UTC/GMT: 17/03/18 / 2018-03-17 19:31:04 / March 17, 2018 @ 7:31 pm. All ids that are associated to the event: us1000d82k. Unique identifier: us1000d82k. The 4.2-magnitude earthquake was detected at 03:31:04 / 3:31 am (local time epicenter).

Country/countries that might be effected, China (c. 1 330 044 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Yibin, Xunchang (min 5000 pop). Event epicenter was 75 km (47 miles) from Yibin (c. 242 100 pop), 40 km (25 miles) from Xunchang (c. 64 600 pop).

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 four earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 19 km ESE of Junlian, China.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 104.6884° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 28.0952° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 31.79 km Depth of the event in kilometers.
Place 19km ESE of Junlian, China Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-03-17 19:31:04 Time when the event occurred. UTC/GMT
Updated 2018-03-24 04:42:38 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 4.73 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 75 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 us1000d82k Id of event.
Event Code 1000d82k An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000d82k, A comma-separated list of event ids that are associated to an event.

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