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Light earthquake: M4 quake has struck near Tocopilla in Chile

Posted by admin on September 4, 2018 0 Comments

Earthquake location -22.7994S, -70.7442WA light earthquake magnitude 4 (ml/mb) strikes 96 km SW of Tocopilla, Chile (60 miles) on Tuesday. The 4-magnitude earthquake was detected at 10:20:46 / 10:20 am (local time epicenter). Unique identifier: us2000h865. Ids that are associated to the event: us2000h865. Exact location of earthquake, -70.7442° West, -22.7994° South, depth 11.44 km. The earthquake occurred at a depth of 11.44 km (7 miles) below the earth’s surface. Global time and date of event 04/09/18 / 2018-09-04 15:20:46 / September 4, 2018 @ 3:20 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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 five earthquakes of magnitude 3.0 or greater that has struck near. 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.

Did you feel the quake?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 96 km SW of Tocopilla, Chile.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -70.7442° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -22.7994° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 11.44 km Depth of the event in kilometers.
Place 96km SW of Tocopilla, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-09-04 15:20:46 Time when the event occurred. UTC/GMT
Updated 2018-09-04 15:47:16 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 0.719 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.55 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 185 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000h865 Id of event.
Event Code 2000h865 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000h865, A comma-separated list of event ids that are associated to an event.

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