Earthquake

[dakine]

quote:

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Originally posted by faroutsider

When the lava lake went down recently, the lava was thought to be underground in that area and there were many small quakes in that area as well.

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That's not completely accurate.

The earthquakes during the swarm being referred to were concentrated along the Upper East Rift Zone but they stopped near Pauahi Crater, which is two miles mauka of the point at which today's event occurred. That is also the extent of where magma was thought to have migrated as well.

Todays earthquake was located in an area that has produced events of this size, and at the same depth (8 - 10 km) repeatedly over the years, at least as far back as the onset of activity at Puu Oo. It is generally believed that they are associated with the widening of the East Rift between Pauahi Crater and Puu Oo.

Often times when we have these events they will be followed by a similar sized earthquake, at a similar depth, in a location just south of Puu Oo/Kupaianaha in a few weeks to a month later.