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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.2 quake has struck near Chahuite in Mexico



Earthquake location 16.3217S, -94.1556WA light earthquake magnitude 4.2 (ml/mb) has occurred on Saturday, 3 kilometers (2 miles) from Chahuite in Mexico. The epicenter was at a depth of 115.13 km (72 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us2000aivy. Id of event: us2000aivy. The temblor was reported at 08:30:40 / 8:30 am (local time epicenter). Exact location, longitude -94.1556° West, latitude 16.3217° North, depth = 115.13 km. Date and time of earthquake in UTC/GMT: 09/09/17 / 2017-09-09 14:30:40 / September 9, 2017 @ 2:30 pm.

Nearest cities/city/towns to hypocenter/epicentrum was Juchitán de Zaragoza, San Mateo del Mar, Unión Hidalgo (min 5000 pop). Country/countries that might be effected, Mexico (c. 112 469 000 pop). Earthquake epicenter was 93 km (58 miles) from Juchitán de Zaragoza (c. 67 600 pop), 62 km (38 miles) from Cintalapa de Figueroa (c. 33 500 pop), 50 km (31 miles) from Tonalá (c. 32 900 pop), 29 km (18 miles) from Arriaga (c. 22 800 pop), 74 km (46 miles) from Unión Hidalgo (c. 12 700 pop), 67 km (41 miles) from Jiquipilas (c. 9 900 pop).

There are an estimated 13,000 light quakes 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 sixty-six, in the last 10 days eighty-nine, in the past 30 days eighty-nine and in the last 365 days one hundred and nine earthquakes of magnitude 3.0 or greater that have been detected in the same area.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. 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: 3 km NE of Chahuite, Mexico.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -94.1556° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.3217° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 115.13 km Depth of the event in kilometers.
Place 3km NE of Chahuite, 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 14:30:40 Time when the event occurred. UTC/GMT
Updated 2017-09-13 17:05:36 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 5.005 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.36 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 163 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 us2000aivy Id of event.
Event Code 2000aivy An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000aivy, A comma-separated list of event ids that are associated to an event.

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