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Light earthquake: M4.4 quake has struck near La Ligua in Chile

Posted by admin on September 22, 2015 0 Comments

Earthquake location -32.1726S, -72.386WA light earthquake with magnitude 4.4 (ml/mb) was detected on Tuesday, 113 km WNW of La Ligua, Chile (70 miles). Exact location of event, longitude -72.386 West, latitude -32.1726 South, depth = 10 km. The earthquake was roughly at a depth of 10 km (6 miles). The temblor was picked up at 11:45:06 / 11:45 am (local time epicenter). Unique identifier: us20003mz2. Ids that are associated to the event: us20003mz2. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 22/09/15 / 2015-09-22 16:45:06 / September 22, 2015 @ 4:45 pm.

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

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage 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: 113 km WNW of La Ligua, Chile.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -72.386° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -32.1726° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 113km WNW of La Ligua, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-22 16:45:06 Time when the event occurred. UTC/GMT
Updated 2015-09-22 20:36:09 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 298 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 1.057 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.88 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 167 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 us20003mz2 Id of event.
Event Code 20003mz2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003mz2, A comma-separated list of event ids that are associated to an event.

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