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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Lebu in Chile



Earthquake location -37.5234S, -74.1346WA light earthquake magnitude 4.5 (ml/mb) strikes 44 kilometers (27 miles) from Lebu in Chile on Monday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -74.1346° West, latitude -37.5234° South, depth = 25.58 km. Event ids that are associated to the earthquake: us2000ajzk. Id of event: us2000ajzk. The earthquake was roughly at a depth of 25.58 km (16 miles). The temblor was reported at 06:25:05 / 6:25 am (local time epicenter). Date and time of earthquake in UTC/GMT: 11/09/17 / 2017-09-11 11:25:05 / September 11, 2017 @ 11:25 am.

Country/countries that might be effected, Chile (c. 16 746 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Arauco, Cañete, Curanilahue. Event epicenter was 70 km (43 miles) from Curanilahue (c. 30 600 pop), 78 km (49 miles) from Arauco (c. 24 700 pop), 43 km (27 miles) from Lebu (c. 22 300 pop), 72 km (45 miles) from Cañete (c. 20 200 pop).

In the past 24 hours, there have been five, in the last 10 days six, in the past 30 days seven and in the last 365 days thirty-five earthquakes of magnitude 3.0 or greater that has struck near. 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.

Did you feel it?

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: 44 km WNW of Lebu, Chile.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -74.1346° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -37.5234° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.58 km Depth of the event in kilometers.
Place 44km WNW of Lebu, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-11 11:25:05 Time when the event occurred. UTC/GMT
Updated 2017-09-23 10:39:01 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 312 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 1.081 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.42 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 202 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 us2000ajzk Id of event.
Event Code 2000ajzk An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000ajzk, A comma-separated list of event ids that are associated to an event.

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