How are California earthquake risks compared to India?

4 Answers

Relevance
  • 8 months ago

    Greater. Both California and India partially cover a subduction zone. But in addition, California also straddles a transform plate boundary, and has active faulting throughout the state. India, on the other hand, gets almost all of its earthquakes in the north. And since its subduction zone is partially fused, major earthquakes are less frequent, and megathrust quakes are rare. In fact, there has only been one demonstrable megathrust quake on that boundary since we've been keeping records. And we didn't even know that's what it was at the time.

    So while India can experience earthquakes as powerful as those California gets, they are less frequent, making California the greater quake risk. Additionally, northern California is at risk for a tsunami triggered by its own quakes, while for India, that is a risk from across the ocean.

  • 8 months ago

    Comparisons of risk are difficult because what is happening in California is very different from what is happening in India. The San Andreas fault  and the Howard flat in Southern California,are strike slip faults. In India, two continents are colliding, Asia and India. India is subsiding underneath Asia, but the Himalayas are being pushed higher because the silicic granitic crust us being cit off from the basaltic crust that is subsiding. The epicenters if the earthquakes in India and Nepal and Pakistan and China and Russia ate much deeper than the earthquakes in California on strike slip faults. A Richter scale 8 earthquake in California can be just as devastating as Richter scale 7.5 earthquake in India Asia. 

     Iam not going to try to explain the difference of the Mercado intensity scale. I'll be accused of going off topic, bring a know it all, ir talking over people's heads or going into rant mode. 

    https://en.m.wikipedia.org/wiki/Modified_Mercalli_... 

    Source(s): B.S. earth sciences/geology, M.S. ABT geophysics, B.S. physical geography, M.S. geology
  • Mike
    Lv 7
    8 months ago

    Depends on what you choose to include in the risk assessment.

    India has more people and more fault lines, but the level of building and infrastructure in India is less than in California.

  • 8 months ago

    And you wonder why we don't have underground train stations

Still have questions? Get your answers by asking now.