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Light World Earthquakes Magnitude 4-4.9

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


Earthquake location -37.3656S, -74.2338WA light earthquake magnitude 4.1 (ml/mb) strikes 58 kilometers (36 miles) from Lebu in Chile on Saturday. Unique identifier: us1000870j. Ids that are associated to the event: us1000870j. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 16:41:32 / 4:41 pm (local time epicenter). Global time and date of event 04/03/17 / 2017-03-04 21:41:32 / March 4, 2017 @ 9:41 pm UTC/GMT. The epicenter of the earthquake was roughly 23.33 km (14 miles) below the earth’s surface. Exact location, longitude -74.2338° West, latitude -37.3656° South, depth = 23.33 km.

Close country/countries that might be effected, Chile (c. 16 746 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Cañete, Arauco, Curanilahue. Earthquake epicenter was 79 km (49 miles) from Curanilahue (c. 30 600 pop), 82 km (51 miles) from Arauco (c. 24 700 pop), 58 km (36 miles) from Lebu (c. 22 300 pop), 88 km (55 miles) from Cañete (c. 20 200 pop).

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

Did you feel it?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 58 km WNW of Lebu, Chile. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -74.2338° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -37.3656° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 23.33 km Depth of the event in kilometers.
Place 58km 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 2017-03-04 21:41:32 Time when the event occurred. UTC/GMT
Updated 2017-03-17 23:32:02 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 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 1.037 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 194 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 us1000870j Id of event.
Event Code 1000870j An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000870j, A comma-separated list of event ids that are associated to an event.

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