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Light earthquake: M4.5 quake has struck near Ixtapa in Mexico



Earthquake location 17.3924S, -101.7898WA light earthquake magnitude 4.5 (ml/mb) has struck on Thursday, 34 kilometers (21 miles) from Ixtapa in Mexico. Id of earthquake: us10008je0. Event ids that are associated: us10008je0. The epicenter was at a depth of 30.88 km (19 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 20/04/17 / 2017-04-20 21:13:37 / April 20, 2017 @ 9:13 pm. The temblor was detected at 14:13:37 / 2:13 pm (local time epicenter). Exact location, longitude -101.7898° West, latitude 17.3924° North, depth = 30.88 km.

The epicenter was 79 km (49 miles) from Ciudad Lázaro Cárdenas (c. 84 000 pop), 38 km (23 miles) from Ixtapa-Zihuatanejo (c. 61 300 pop), 83 km (51 miles) from Guacamayas (c. 39 400 pop), 58 km (36 miles) from Petatlán (c. 21 000 pop), 82 km (51 miles) from La Orilla (c. 20 100 pop), 88 km (55 miles) from Buenos Aires (c. 9 900 pop), 39 km (24 miles) from San José Ixtapa (Barrio Viejo) (c. 8 700 pop). Closest city/cities/towns to epicentrum/hypocenter was Buenos Aires, Guacamayas, La Orilla (min 5000 pop). Country/countries that might be effected, Mexico (c. 112 469 000 pop).

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. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days nine earthquakes of magnitude 3.0 or greater that have been detected in the same area.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 34 km SSW of Ixtapa, Mexico.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -101.7898° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.3924° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 30.88 km Depth of the event in kilometers.
Place 34km 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 2017-04-20 21:13:37 Time when the event occurred. UTC/GMT
Updated 2017-04-20 21:31:10 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 2.7 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 2.304 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 186 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 us10008je0 Id of event.
Event Code 10008je0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10008je0, A comma-separated list of event ids that are associated to an event.

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