Topography Reflects Baja Quake Site's Complex Geology

Apr 06, 2010
The site of an April 4, 2010, magnitude 7.2 earthquake, the Laguna Salada fault in Baja, California, is clearly shown in this image from NASA's Shuttle Radar Topography Mission. Image credit: NASA/JPL/NGA

(PhysOrg.com) -- The topography surrounding the Laguna Salada fault in the Mexican state of Baja, California, is clearly shown in this combined radar image and topographic view (above) generated with data from NASA's Shuttle Radar Topography Mission (SRTM). On April 4, 2010, a magnitude 7.2 earthquake struck along this fault about 64 kilometers (40 miles) south of the Mexico-United States border.

According to the U.S. Geological Survey, the earthquake was the largest to strike this area since 1892. This fault is a probable southern continuation of the Elsinore fault zone in Southern California, and is related to the zone complex. since the major event have appeared to extend in both directions along this fault system from the epicenter, marked by the red star.

This view combines a radar image acquired in February 2000 during SRTM, and color-coding by topographic height using data from the mission's data. Dark green colors indicate low elevations, rising through lime green, yellow and tan, to white at the highest elevations. The image shows a simulated view toward the southwest, with the topography exaggerated by a factor of two for clarity.

Explore further: Researchers construct a model of impact for El Nino / La Nina events

More information: For more information, also see: photojournal.jpl.nasa.gov/catalog/PIA13016

add to favorites email to friend print save as pdf

Related Stories

Loma Prieta fault not so weak?

Dec 19, 2007

A new study adds to evidence that the fault responsible for the 1989 Loma Prieta earthquake is not as unusually weak as had been thought.

Why do earthquakes stop?

Feb 06, 2008

The underlying structure of a fault determines whether an earthquake rupture will jump from one fault to another, magnifying its size and potential devastation. Understanding why some earthquakes terminate along a fault, ...

Recommended for you

The ocean's living carbon pumps

6 hours ago

When we talk about global carbon fixation – "pumping" carbon out of the atmosphere and fixing it into organic molecules by photosynthesis – proper measurement is key to understanding this process. By ...

User comments : 0