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Two 8.0+ Earthquakes strike the Indian Ocean

Legendary Silke

Legendary Silke

[I][B]You like dragons?[/B][/I]
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    • Seen Dec 23, 2021
    https://www.aljazeera.com/news/asia...&utm_term=plustweets&utm_medium=MasterAccount
    https://ptwc.weather.gov/?region=3&id=indian.TSUIOX.2012.04.11.1014

    Oh, and the sea around Phuket? It receded hard.

    https://twitter.com/#!/Orawan_TV/status/190019254794457089/photo/1

    https://ptwc.weather.gov/ptwc/text.php?id=indian.TSUIOX.2012.04.11.1014
    (Below spoiler contains TSUNAMI BULLETIN NUMBER 003)
    Spoiler:
     
    Last edited:
    I skimmed the report but do they mention what the earthquake that caused this was on the richter scale?
    Unless it wasn't caused by an undersea earthquake (Caused by the tectonic plates rubbing against each other normally I think)
    But they usually are.
     
    PokeLordAndrew said:
    I skimmed the report but do they mention what the earthquake that caused this was on the richter scale?
    Unless it wasn't caused by an undersea earthquake (Caused by the tectonic plates rubbing against each other normally I think)
    But they usually are.
    Click to expand...

    "Wednesday's first quake was measured at a preliminary 8.6-magnitude, according to the US Geological Survey, which revised down an earlier 8.9 estimate."
     
    Is the magnitude the same as the Richter scale?
     
    PokeLordAndrew said:
    I skimmed the report but do they mention what the earthquake that caused this was on the richter scale?
    Unless it wasn't caused by an undersea earthquake (Caused by the tectonic plates rubbing against each other normally I think)
    But they usually are.
    Click to expand...
    Wednesday's first quake was measured at a magnitude of 8.6, according to the US Geological Survey, which revised down an earlier 8.9 estimate.
    Click to expand...

    Second paragraph of the first article which was linked. As far as I understand the Richter Scale (which, to be fair, isn't much), this is a pretty big one.

    ...I'm wondering why, though, the United Kingdom is on the threat list. I don't see how we're connected to the Indian Ocean.

    edit:
    Is the magnitude the same as the Richter scale?
    Click to expand...
    probably. I'll Google it.
    edit 2: yes.
     
    I think it's because Australia is part of the UK?
    Either that or it was just a big quake and their being catious
     
    It's so strange how such a huge quake didn't produce a tsunami. I guess everyone there was lucky (if you can call an 8.6 magnitude quake lucky) the geological forces happened in such a way that it didn't.

    Razor Leaf said:
    ...I'm wondering why, though, the United Kingdom is on the threat list. I don't see how we're connected to the Indian Ocean.
    Click to expand...
    Maybe they're referring to the British Indian Ocean Territory. It's right in the middle of the Indian Ocean.
     
    Well many states in South India are still on alert. I guess they're just being careful because the last time a tsunami hit my country a few of the islands were submerged entirely and it was absolutely devastating because the Tsunami Relief fund didn't really react well either.

    Let's just say we got lucky.
     
    PokeLordAndrew said:
    I think it's because Australia is part of the UK?
    Either that or it was just a big quake and their being catious
    Click to expand...

    Uh... no. Australia is connected to Britain, but by that wording you're saying Australia is in Europe. XD; I know there's a word for it but it's slipping my mind right now, um, what Australia's connection really is.

    Anyway, that's pretty large. :( But yeah as others said, lucky it didn't do anything really bad.
     
    So I know it's old news, but the reason there hasn't been a tsunami is because the quake that happened was a strike-slip event. This kind of tectonic disturbance has no vertical uplift of plates which is what causes the displacement of water needed to generate a massive tsunami such as the one that devastated Southeast Asia in December 2004. No vertical uplift means no tsunami. Hope this makes sense.
     
    You know, the massive quake lasted in Indonesia for around five mins. Miraculously, there were no causalities reported.
     
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