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#sanandreas

1 post1 participant1 post today
Public
Ramesh #NotGoingBack

⬆️ @lauren

>> In his discussion with Musk, Trump again claims that rising ocean levels are great because "they'll create more beachfront property." … impossible to fathom

great pun 😂

@Chip_Unicorn

>> He is literally a cartoon villain. Literally Lex Luthor.

#LexLuthor only targeted the #SanAndreas Fault, a small sliver of #California

#ClimateChange and rising ocean levels will devastate the WHOLE planet, and no #Superman will be able to save us.

This rattling is orders of magnitude worse

Public
Aranjedeath

Seismic attenuation and stress on the San Andreas Fault at Parkfield: are we critical yet?

frontiersin.org/articles/10.33

FrontiersSeismic attenuation and stress on the San Andreas Fault at Parkfield: are we critical yet?The Parkfield transitional segment of the San Andreas Fault (SAF) is characterized by the production of frequent quasi-periodical M6 events that break the very same asperity. The last Parkfield mainshock occurred on 28 September 2004, 38 years after the 1966 earthquake, and after the segment showed a ∼22 years average recurrence time. The main reason for the much longer interevent period between the last two earthquakes is thought to be the reduction of the Coulomb stress from the M6.5 Coalinga earthquake of 2 May 1983, and the M6 Nuñez events of June 11th and 22 July 1983. Plausibly, the transitional segment of the SAF at Parkfield is now in the late part of its seismic cycle and current observations may all be relative to a state of stress close to criticality. However, the behavior of the attenuation parameter in the last few years seems substantially different from the one that characterized the years prior to the 2004 mainshock. A few questions arise: (i) Does a detectable preparation phase for the Parkfield mainshocks exist, and is it the same for all events? (ii) How dynamically/kinematically similar are the quasi-periodic occurrences of the Parkfield mainshocks? (iii) Are some dynamic/kinematic characteristics of the next mainshock predictable from the analysis of current data? (e.g., do we expect the epicenter of the next failure to be co-located to that of 2004?) (iv) Should we expect the duration of the current interseismic period to be close to the 22-year “und...
#earthquakeWeather#news#california
Public
💧🌏 Greg Cocks

Balanced Boulders On San Andreas Fault Suggest The 'Big One' Won't Be As Destructive As Once Thought
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livescience.com/planet-earth/e <-- shared technical article
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agu.confex.com/agu/fm23/meetin <-- shared abstract
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#GIS #spatial #mapping #spatialanalysis #model #modeling #earthquake #faulting #prediction #reconstruction #dating #risk #hazard #hazardassessment #shaking #seismic #earthquakeengineering #LoveJoyButtes #hazardmodel #earthquakemodel #CA #California #geology #engineeringgeology #SanAndreasFault #SanAndreas #fault #groundmotion #history #holocene #earthquakehazard #Mojave #validation #returnperiod #magnitude #mathematicalmodeling

photo - sampling - precariously balanced rocks (PBRs) at Lovejoy Buttes, Mojave, CA
photo - precariously balanced rocks (PBRs) at Lovejoy Buttes, Mojave, CA
photo - scanning marks - precariously balanced rocks (PBRs) at Lovejoy Buttes, Mojave, CA
photo - scanning marks - precariously balanced rocks (PBRs) at Lovejoy Buttes, Mojave, CA
Public
Malte Ziebarth

After a long time (4 years? 5 years?), the second article of my PhD is finally out. Who would have expected?!

We have investigated the long-term seismic energy partitioning in Southern California and on the San Andreas fault with a particular focus on the San Andreas heat flow paradox. Three energy-related parameters (and stochastic fluctuations) can resolve the paradox.

It‘s open access here:
doi.org/10.1029/2023JB027086

#geophysics#SanAndreas#heatflow
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