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Light earthquake: M4.2 quake has struck near Ovalle in Chile

Posted by admin on September 20, 2015 0 Comments

Earthquake location -30.5781S, -72.1764WA light earthquake with magnitude 4.2 (ml/mb) was detected on Sunday, 93 km W of Ovalle, Chile (58 miles). Event ids that are associated to the earthquake: us20003m7f. Id of event: us20003m7f. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 20/09/15 / 2015-09-20 15:46:48 / September 20, 2015 @ 3:46 pm UTC/GMT. Exact location of earthquake, longitude -72.1764 West, latitude -30.5781 South, depth = 9.25 km. The earthquake occurred at a depth of 9.25 km (6 miles). The temblor was picked up at 10:46:48 / 10:46 am (local time epicenter).

In the past 24 hours, there have been fourteen, in the last 10 days ninety-two, in the past 30 days ninety-two and in the last 365 days one hundred and seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 93 km W of Ovalle, Chile.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -72.1764° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -30.5781° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 9.25 km Depth of the event in kilometers.
Place 93km W of Ovalle, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-20 15:46:48 Time when the event occurred. UTC/GMT
Updated 2015-09-20 18:31:39 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 0.476 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.69 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 198 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 us20003m7f Id of event.
Event Code 20003m7f An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003m7f, A comma-separated list of event ids that are associated to an event.

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