Tsunami waves in the Mentawai and the eruption of Mount Merapi may be linked to one another, writes Richard A Lovett from National Geographic News, citing a number of scientists said on Thursday. The tsunami waves were triggered by an earthquake measuring 7.7 on the Richter Scale that occurred on Monday at 9:42 pm, at the most western island of Sumatra that. The tsunami and earthquake killed more than 300 people.
A few hours later the volcano Merapi in Yogyakarta as high as 3,000 meters, spewing hot ash into the sky and killing at least 30 people who lived at the foot of the mountain. Most active volcanoes in Indonesia, according to Richard Lovett, increased activity of its energy in recent days.
But the main eruption time throwing only a few hours after the Mentawai earthquake raises the question whether the shocks in the bowels of the earth have triggered the eruption, though the epicenter of the quake was 1,300 km from Merapi.
"It could happen volcanic eruptions associated with changes in pressure due to earthquake or triggered by seismic waves. But the documentation on this matter is uncertain," said Chris Goldfinger, an expert in marine geology from Oregon State University, in his email.
The examples that have been known, he said, include changes in geothermal activity in Yellowstone National Park in 2002 following a 7.9 Richter scale earthquake in Alaska, and the eruption of the Andes in 1960 after a magnitude 9.5 earthquake triggered SR in Chile.
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