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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near Ixtapa in Mexico



Earthquake location 17.1875S, -101.8372WA light earthquake magnitude 4.5 (ml/mb) has struck on Monday, 57 kilometers (35 miles) from Ixtapa in Mexico. Unique identifier: us10007g3b. Ids that are associated to the event: us10007g3b. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 21/11/16 / 2016-11-21 15:28:46 / November 21, 2016 @ 3:28 pm UTC/GMT. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. The 4.5-magnitude earthquake was detected at 08:28:46 / 8:28 am (local time epicenter). Exact location of earthquake, -101.8372° West, 17.1875° North, depth 10 km.

Earthquake epicenter was 96 km (60 miles) from Ciudad Lázaro Cárdenas (c. 84 000 pop), 59 km (37 miles) from Ixtapa-Zihuatanejo (c. 61 300 pop), 72 km (45 miles) from Petatlán (c. 21 000 pop), 62 km (38 miles) from San José Ixtapa (Barrio Viejo) (c. 8 700 pop), 67 km (42 miles) from San Jeronimito (c. 6 400 pop), 63 km (39 miles) from El Coacoyul (c. 5 700 pop), 57 km (36 miles) from Ixtapa (c. 5 200 pop). Nearest cities/city/villages to epicentrum/hypocenter was Ciudad Lázaro Cárdenas, Petatlán, San Jeronimito (min 5000 pop). Close country/countries, Mexico (c. 112 469 000 pop) (That might be effected).

In the past 24 hours, there have been four, in the last 10 days four, in the past 30 days four and in the last 365 days five earthquakes of magnitude 3.0 or greater that has occurred nearby. 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.

Questions or comments?

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. 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: 57 km SSW of Ixtapa, Mexico.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -101.8372° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.1875° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 57km SSW of Ixtapa, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-11-21 15:28:46 Time when the event occurred. UTC/GMT
Updated 2016-12-18 22:11:20 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 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 0.547 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.31 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 206 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10007g3b Id of event.
Event Code 10007g3b An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10007g3b, A comma-separated list of event ids that are associated to an event.

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