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last updated: 04/27/11 09:35.11 (PDT)

On Tuesday April 26 2011 at 2:10 PM (PDT) the USArray seismic network recorded an earthquake (preliminary Mw 5.6) located in the Gulf of California, Mexico.

Initial source parameters for this tremor are indicated below. The epicentral distance (i.e. distance separating the epicenter and the closest station in the recording network, 214A) for the USArray is 514 km (4.62 degrees).

If you felt the quake, the USGS would like to know. Please add your comments to the USGS page "Did you feel it?".

Summary

Global map view
Solution Parameters
Local Date:Tuesday April 26, 2011
Local Time: 2:10 PM PST
Universal Time:04/26/11 (116) 21:10.26 UTC
Magnitude:5.6 Mw
Latitude:27.4390
Longitude:-111.5980
Depth:15 km
Author:QED
Authoritative:yes

Proximity to Population Centers

  • 73 km (45 miles) E of Santa Rosalia, Baja California Sur, Mexico
  • 88 km (54 miles) SW of Guaymas, Sonora, Mexico
  • 161 km (100 miles) N of Loreto, Baja California Sur, Mexico
  • 667 km (414 miles) S of Phoenix, Arizona

Maps

Mercator projection regional view

The red star denotes the earthquake epicenter. Triangle symbols are active stations at the time of the earthquake in the USArray (excluding ANSS backbone stations and GSN stations, which are represented by a diamond symbol) and colored by network. Blue lines are major rivers. Thin black lines are state boundaries and thick black lines are national boundaries.

Regional map view
Network Legend
 Transportable Array (TA)
 UC San Diego (AZ)
 CalTech (CI)
 Uni. Utah (UU)
 ANSS backbone stations (US)
 Global Seismograph Network (IU)

Regional satellite view

The red marker denotes the earthquake epicenter.

Detailed terrain view

The red marker denotes the earthquake epicenter.

Waveforms

You may view plots showing this event as recorded by USArray instruments:

3 components recorded by 214A, the closest USArray station to the event:

Latest monthly deployment map

Every arrival station waveforms

View waveforms from any station* that recorded arrivals for the event by entering the station code below (e.g. 109C) and clicking the 'View waveforms' button:

* – If waveforms are filtered, the filter type is listed on the image

News links

Tsunami information

Search the internet

To search the internet for more information about this event, click on the button below:

Search for this event using Goggle.com

Current seismic activity measured by USArray

Click the link below to observe an interactive map of earthquakes recorded by the USArray deployment:

Further information

Learn more about the Array Network Facility (ANF) component of USArray, the USArray experiment, the EarthScope project, and the Incorporated Research Institutions for Seismology (IRIS).

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