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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag has occurred near Tinogasta in Argentina


Earthquake location -28.1935S, -67.2675WA light earthquake with magnitude 4.2 (ml/mb) was reported 32 kilometers (20 miles) from Tinogasta in Argentina on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 133.42 km (83 miles). The 4.2-magnitude earthquake was detected at 13:12:05 / 1:12 pm (local time epicenter). Exact location of earthquake, -67.2675° West, -28.1935° South, depth 133.42 km. Unique identifier: us20009z65. Ids that are associated to the event: us20009z65. Global time and date of event 18/07/17 / 2017-07-18 16:12:05 / July 18, 2017 @ 4:12 pm UTC/GMT.

Earthquake epicenter was 33 km (20 miles) from Tinogasta (c. 14 500 pop), 63 km (39 miles) from Arauco (c. 13 700 pop), 66 km (41 miles) from Fiambalá (c. 8 100 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Fiambalá, Arauco, Tinogasta. Nearby country/countries that might be effected, Argentina (c. 41 343 000 pop).

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 three and in the last 365 days eighteen earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 13,000 light quakes in the world.

Questions or comments?

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. 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: 32 km ESE of Tinogasta, Argentina.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -67.2675° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -28.1935° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 133.42 km Depth of the event in kilometers.
Place 32km ESE of Tinogasta, Argentina Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-18 16:12:05 Time when the event occurred. UTC/GMT
Updated 2017-08-01 19:39:24 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 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 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 2.693 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.89 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 68 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 us20009z65 Id of event.
Event Code 20009z65 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009z65, A comma-separated list of event ids that are associated to an event.

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