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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.2 mag, 70 km S of Salina Cruz, Mexico


Earthquake location 15.537S, -95.0828WA light earthquake with magnitude 4.2 (ml/mb) was detected on Saturday, 70 kilometers (43 miles) from Salina Cruz in Mexico. Exact location of earthquake, -95.0828° West, 15.537° North, depth 19.56 km. The earthquake occurred at a depth of 19.56 km (12 miles) below the earth’s surface. The temblor was reported at 14:45:55 / 2:45 pm (local time epicenter). Exact time and date of event in UTC/GMT: 09/09/17 / 2017-09-09 20:45:55 / September 9, 2017 @ 8:45 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us2000arta. Event ids that are associated: us2000arta.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Santo Domingo Tehuantepec, San Mateo del Mar, Salina Cruz. Nearby country/countries that might be effected, Mexico (c. 112 469 000 pop). Earthquake epicenter was 73 km (45 miles) from Salina Cruz (c. 73 600 pop), 89 km (55 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 76 km (47 miles) from San Mateo del Mar (c. 5 400 pop).

In the past 24 hours, there have been one hundred and fourty-seven, in the last 10 days two hundred and one, in the past 30 days two hundred and one and in the last 365 days two hundred and twelve earthquakes of magnitude 3.0 or greater that has occurred 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.

Did you feel the quake?

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 70 km S of Salina Cruz, Mexico.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -95.0828° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 15.537° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 19.56 km Depth of the event in kilometers.
Place 70km S of Salina Cruz, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-09 20:45:55 Time when the event occurred. UTC/GMT
Updated 2017-10-05 04:28:32 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 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 1.014 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.32 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 148 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 us2000arta Id of event.
Event Code 2000arta An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000arta, A comma-separated list of event ids that are associated to an event.

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