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: http://star.arm.ac.uk/~jgd/quake.html
Дата изменения: Wed Jan 17 17:24:29 2001 Дата индексирования: Mon Oct 1 20:53:16 2012 Кодировка: Поисковые слова: earthquakes |
A solar quake
Following a flare on 9 July '96, a solar quake on the
solar surface was observed for the first time. It contained 40,000 times
the energy released in the great earthquake that devastated San Francisco
in 1906. In an hour, the waves traveled a distance ten times that of the
Earth's diameter. The waves accelerated from 22,000 miles per hour to 250,000
miles per hour as they travelled outwards and disappeared into the photosphere.
A solar-quake following a large
flare
Large flares can emit up to 10E32 ergs of energy. This energy is ten million times greater than the energy released from a volcanic explosion. On the other hand, it is less than one-tenth of the total energy emitted by the Sun every second.