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SUMMARY:Cyprus: Seismicity\, Subduction and Serpentinite - Tom Merry\, Uni
 versity of Cambridge
DTSTART:20240221T160000Z
DTEND:20240221T170000Z
UID:TALK212500@talks.cam.ac.uk
CONTACT:Megan Holdt
DESCRIPTION:The island of Cyprus sits at the plate boundary between Anatol
 ia in the north and Africa in the south\, at a transition from oceanic sub
 duction in the west to continental strike-slip and collision tectonics in 
 the east. The nature of the plate boundary at Cyprus has been historically
  controversial and poorly understood\, in part due to a lack of constraint
 s on local seismicity\, despite the historical record of deadly earthquake
 s. Cyprus itself is dominated by the Troodos ophiolite\, an exceptionally 
 preserved piece of oceanic lithosphere that has undergone significant upli
 ft in the last 6 Myr. Remarkably\, the highest point of the island\, Mount
  Olympus (1\,952 m above sea level)\, is formed of rocks from the Earth’
 s mantle\, suggested to be exhumed by serpentinite diapirism\; this proces
 s is also still poorly understood. In this talk I will cover the recent in
 crease in seismological observations in Cyprus\, including my PhD work on 
 creating a high-resolution earthquake catalogue for the island\, with a ne
 w 1-D P-wave velocity model and a new local magnitude scale\, making use o
 f a 2-year deployment of 5 broadband seismometers by Imperial College Lond
 on supplementing the growing permanent network. I will discuss the implica
 tions of observed seismicity patterns\, alongside new and existing focal m
 echanism analysis\, for ongoing subduction processes and incipient contine
 ntal collision\, as well as links to the serpentinite diapirism proposed t
 o form Mount Olympus.
LOCATION:Wolfson Lecture Theatre
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