Skip to comments.6.5 Magnitude Quake Aftershock Jolts Indonesia
Posted on 01/01/2005 6:58:00 PM PST by crushelitsEdited on 01/01/2005 6:59:33 PM PST by Admin Moderator. [history]
JAKARTA, Indonesia (AP) - A 6.5-magnitude aftershock to last weekend's killer earthquake hit off the coast of Sumatra on Saturday, sending frightened residents running into the streets. No injuries were reported.
The U.S. Geological Survey said the 6.5 aftershock hit early Saturday morning and was centered 215 miles west of Banda Aceh, the hard-hit provincial capital in northern Sumatra.
(Excerpt) Read more at cnn.netscape.cnn.com ...
After the big one, I subscribed to the USGS email that sends out notifications when quakes occur. Since the evening of 12/28 I've gotten 19 emails about quakes over 5.5, 18 in the Indian Ocean, 1 off of Japan. You can sign up on the usgs.gov site.
Very few teletsunamis are generated by quakes under 8.0. Another tsunami in the affected areas, especially the more distant ones like India and Sri Lanka, is exceedingly unlikely.
Any news about Toba? There was a link, on a previous tsunami thread, about the volcano called Toba on Sumatra...worries were expressed that all of the seismic activity could trigger the volcano. Just wondering...
I keep thinking that if these quakes and sfter shcks continue that some of these Islands will sink.
Isaiah 26:9 With my soul have I desired thee in the night; yea, with my spirit within me will I seek thee early: for when thy judgments are in the earth, the inhabitants of the world will learn righteousness.
What is the source of that chart? I believe Alaska 1964 was a 9.2.
All of the sources I have found list it as 8.5. Having said that, it is possible that the Alaskan quake was greater that 8.5 because the Richter scale only goes to 8.5. The Kanamori scale (only invented in 1979) can measure larger quakes.
Made me look up teletsunamis, didn't you.
I haven't seen any evidence any volcanoes in the world, much less the region, have started erupting since the 9.0 (there are plenty that were erupting before it.)
There's no hard and set magnitude. A 7.0 can cause a tsunami if it causes a landslide.
The source of the chart is the South Dakota Geologic Survey.
There is a volcano right in the heart of the tsunami zone that is erupting.
The most authoritative list is the USGS Moment Magnitude list.
The strongest quake known since 1900 and instrumentation is the 1960 Chilean 9.5. The second is the Alaskan 1964 at 9.2
Must have missed the replies where I repeatedly pointed out in bold type that the report was bogus. :-)
On Good Friday, March 27, 1964, the largest earthquake ever to hit North America struck Alaska. It was the second largest earthquake ever recorded, second only to Chile in 1960, which experienced a quake of 9.5 Moment Magnitude (Mw). The epicenter of this awesome quake was a mere 45 miles west of valdez and 14 miles under the earth's crust. Initial shocks lasting over five minutes affected nearly all of the coastal communities of Alaska.
The magnitude of this quake measured 8.4 - 8.6 on the Richter Scale and was reported as a 9.2 Moment Magnitude (Mw). The massive shock waves ripped streets apart, damaged homes and destroyed buildings in town. Two docks in town were completely destroyed. $15 million dollars in damage was reported.
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