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Earthquakes, geometry, the mantle wedge and tsunami – Bill Fry

Bill Fry is a research seismologist with GNS Science, a NZ Crown Research Institute tasked with public good Earth science, including monitoring and researching geohazards.

2019 Geoscience Society Hochstetter Tour

Earthquakes, geometry, the mantle wedge and tsunami

Any country that borders the ocean is prone to tsunami and New Zealand is no exception.

During great subduction earthquakes (magnitude > 8) to the north of New Zealand the densely populated coastal areas on the north coast may not experience shaking that is significant enough to trigger effective and widespread self-evacuation.

A tsunami-generating earthquake in this region could potentially leave tens of thousands of people exposed; a risk which must be addressed by supplementing natural warning with a cautious interpretation of available instrumental data.

For optimal reduction of loss of life during large regional earthquakes, self-evacuation messaging must be carefully explained and supplemented with scientific monitoring and alerting mechanisms to protect vulnerable populations.

Date Thursday, 17 October 2019
Time 5:30pm - 6:30pm
Audience Public
Event Category Sciences
Event Type Public Lecture
Special Lecture
CampusDunedin
DepartmentGeology
LocationMoot Court, 10th floor Richardson Building
Contact Emailsophie.briggs@otago.ac.nz

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