We know from earthquake physics that the longer you go without relieving the stress built up on a fault, the more likely you are to have a major earthquake. Plate tectonics is operating on faults all over the world every day. So we’re still overdue for the “Big One”? If all that stress is released at once the fault has the current potential for a major (magnitude 7.0+) earthquake. Regardless of any of the minor clamping effects the drying up of the last lake has had, the accumulation of stress from the tectonic plate motion has built up considerably over the past 300 years and will need to be released. We have direct geodetic measurements on this section of the San Andreas Fault. However, this does not fully explain why we have not had a major earthquake during this time. Hill: The drying of the last lake contributes, in small part, to clamping the fault. Los Angeles to the northwest has experienced plenty of destructive earthquakes originating in the Southern San Andreas Fault since then, but none of these has topped magnitude 7.0 on the Richter scale. The Salton Sea has experienced a relatively dry period since the 1730s - 300 years ago. Photo: The lakebed of the Salton Sea (shown above) once held 40 times the volume of water that it does today. The increasing pore pressure from the fluid is like turning the air on - it pushes out on the two sides of the fault making it easier to slide, thus triggering an earthquake. A puck on an air hockey table is a good analogy. This causes an increase in pore pressure which also makes it easier for the fault to slip.
This is like taking a ruler and bending it in the middle, unclamping the two sides of the fault and causing it to slip.Īnother effect is the fluid of the lake itself. When the lake would fill, it was large enough to bend the upper crust of the Earth.
The lake filled and dried up periodically over the past 1,000 years. Hill: Ancient Lake Cahuilla held approximately 40 times the volume of water as today’s Salton Sea, with an area six times the size. Your study found that over the past thousand years major earthquakes took place every time water levels in the lake reached a high point, about every 180 years. The Salton Sea, which is a remnant of the much larger ancient Lake Cahuilla, has gone through many cycles of drying out and filling up again due to fluctuations in the climate. SDSU NewsCenter’s Susanne Clara Bard asked geophysicist graduate student Ryley Hill and his advisor and co-author Matthew Weingarten about what this means for future earthquakes in the region. Now, a new study in the journal Nature by scientists at San Diego State University in collaboration with UC San Diego’s Scripps Institution of Oceanography has found that as the Salton Sea has dried up, it has eased the strain on this part of the fault, potentially postponing a quake that could devastate Los Angeles. In this instance, my knowledge and research could be fundamental in creating and editing effective material.Īs a whole, I’m a valuable asset to any organization seeking experience and knowledge of the media industry as well as any group seeking ambitious storytelling and content creation.The southern end of the San Andreas Fault that runs directly below the Salton Sea in Southern California currently poses the largest seismic hazard in the state, but the area hasn’t experienced a major earthquake in more than 300 years. My interaction and networking with the Austin film community as well as my interests and studies as a Writing & Rhetoric major have contributed to a fundamental and growing understanding of trends and changes within the art and media industries.
Over the years, I’ve familiarized myself and worked with film organizations and workshops, such as the Austin Film Society, Austin Film Festival, and Austin Film Meet, to grow my understanding of the industry and hone my craft as a writer.
Quake quake fruit full#
I seek to work in visual and written media, whether it be in film, video games, or publishing, using a variety of mediums to express the full spectrum of art. As a writer, auteur, and innovator, I seek to expand human potential through the creative medium, intellectually and emotionally challenging the mass audience.
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