Re: Revised M 7.5...

In article <5Z8Lf.815604$xm3.37471@attbi_s21>, George wrote:
Very unusual for a spreading center, I should think (both the sense of
movement and the magnitude).

Is it a spreading centre? I see it somewhat to the south of the
East African rifting region. Right on the border between Mozambique and
Zimbabwe ... which my memory from various sources puts as being a series
of Archean granitic (structural) highs interspersed with
greenschist-facies meta-basic belts. That's an unusual situation for a
M7+. Come to think of it, the depth is given as 5km, which is pretty
shallow.
This one is going to bear watching.

The Rhodesians I've known (note - *not* Zimbabweians) from that
area have described it as fairly sparsely populated with widely spaced
farms, so relatively few people to be harmed by the quake. There are some
cities though - Mutare for example.

--
Aidan Karley FGS
Aberdeen, Scotland,
Location: 57°10'11" N, 02°08'43" W (sub-tropical Aberdeen), 0.021233

.

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