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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near Tanggulashan in China


Earthquake location 33.772S, 91.116WA light earthquake with magnitude 4 (ml/mb) was detected on Thursday, 127 km WSW of Tanggulashan, China (79 miles). The 4-magnitude earthquake was detected at 12:31:55 / 12:31 pm (local time epicenter). Event id: us20009l96. Ids that are associated to the earthquake: us20009l96. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 08/06/17 / 2017-06-08 04:31:55 / June 8, 2017 @ 4:31 am UTC/GMT. The epicenter was at a depth of 62.21 km (39 miles). Exact location of event, longitude 91.116 East, latitude 33.772 North, depth = 62.21 km.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year. 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 five earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

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: 127 km WSW of Tanggulashan, China.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 91.116° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 33.772° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 62.21 km Depth of the event in kilometers.
Place 127km WSW of Tanggulashan, China Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-06-08 04:31:55 Time when the event occurred. UTC/GMT
Updated 2017-06-28 01:05:44 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 246 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 4.056 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 95 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 us20009l96 Id of event.
Event Code 20009l96 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009l96, A comma-separated list of event ids that are associated to an event.

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