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Light earthquake: M4.1 quake has struck near Traiguen in Chile


Earthquake location -38.22S, -72.7366WA light earthquake with magnitude 4.1 (ml/mb) was detected on Tuesday, 5 kilometers (3 miles) from Traiguen in Chile. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -72.7366 West, latitude -38.22 South, depth = 64.22 km. The epicenter was at a depth of 64.22 km (40 miles). Exact time and date of event in UTC/GMT: 31/07/18 / 2018-07-31 12:46:09 / July 31, 2018 @ 12:46 pm. Unique identifier: us2000gi50. Ids that are associated to the event: us2000gi50. The temblor was picked up at 08:46:09 / 8:46 am (local time epicenter).

Epicenter of the event was 59 km (37 miles) from Temuco (c. 238 100 pop), 90 km (56 miles) from Los Ángeles (c. 125 400 pop), 47 km (29 miles) from Angol (c. 44 900 pop), 35 km (22 miles) from Victoria (c. 24 600 pop), 71 km (44 miles) from Mulchén (c. 22 200 pop), 43 km (27 miles) from Lautaro (c. 21 600 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Los Ángeles, Pitrufquén, Freire. Close country/countries, Chile (c. 16 746 000 pop) (That might be effected).

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

Did you feel anything?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 5 km NW of Traiguen, Chile.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -72.7366° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -38.22° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 64.22 km Depth of the event in kilometers.
Place 5km NW of Traiguen, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-07-31 12:46:09 Time when the event occurred. UTC/GMT
Updated 2018-07-31 13:23:42 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 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 259 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 0.769 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.8 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 145 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 us2000gi50 Id of event.
Event Code 2000gi50 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000gi50, A comma-separated list of event ids that are associated to an event.

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