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Light World Earthquakes Magnitude 4-4.9

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


Earthquake location 37.2272S, 78.3817WA light earthquake magnitude 4.2 (ml/mb) has struck on Saturday, 121 kilometers (75 miles) from Layka in China. All ids that are associated to the event: us20002z6q. Unique identifier: us20002z6q. Date and time of earthquake in UTC/GMT: 04/07/15 / 2015-07-04 02:49:40 / July 4, 2015 @ 2:49 am. The 4.2-magnitude earthquake was detected at 10:49:40 / 10:49 am (local time epicenter). Exact location of event, longitude 78.3817 East, latitude 37.2272 North, depth = 10 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface.

Epicenter of the earthquake was 35 km (22 miles) from Zangguy (c. 13 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Zangguy (min 5000 pop). Country/countries that might be effected, China (c. 1 330 044 000 pop).

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

Did you feel anything?

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: 121 km W of Layka, 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 78.3817° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.2272° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 121km W of Layka, China Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-07-04 02:49:40 Time when the event occurred. UTC/GMT
Updated 2015-07-26 03:00:27 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 4.518 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 100 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 us20002z6q Id of event.
Event Code 20002z6q An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20002z6q, A comma-separated list of event ids that are associated to an event.

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