Quimper Geological Society

FRIDAY June 21, 2024  (9 AM)—REGISTRATION CLOSED FIELD TRIP:  Examine Discovery Bay’s Past Tsunami Record Using Two Contrasting Evidential Methods There are at least two salient features of Pacific Northwest history:  an extremely active geologic past, coupled with a region inhabited by indigenous peoples since “time immemorial”. These two features share common ground at Discovery Bay on the Quimper Peninsula of Washington State. Many tsunamis have occurred at this bay over at least the past 3000 years, during which time the area was concurrently inhabited by indigenous peoples. This field trip will examine the geologic and anthropological evidence of the occurrence… Read more2024-06-21 Discovery Bay Tsunami Evidence FIELD TRIP—CLOSED

Saturday, September 14, 4 PM The Lecture:  Baranof Island, Alaska, and Vancouver Island were neighbors 50 million years ago – Darrel Cowan Darrel will discuss the evolution of hypotheses about the large-scale coastwise displacements of tectonic elements or terranes along the western margin of North America. He will present the geologic evidence he published in 1982 supporting the hypothesis in the title of his lecture. The still-contentious Baja British Columbia hypothesis, developed in the early 1980’s, was based entirely on paleomagnetic data. This IN-PERSON ONLY lecture will start at 4 PM on Saturday, September 14, 2024. This is free and open… Read more2024-09-14 Darrel Cowan — Vancouver Island and an Alaskan Island were neighbors 50 Million Years Ago

The Lecture:  A fossil Cascadia Megathrust in the high Olympic Mountains and what it can teach us about subduction earthquakes Check back again… we will soon have additional information about the lecture.   This IN-PERSON ONLY lecture will start at 4 PM on Saturday, October 5, 2024. This is free and open to the public. (Donations graciously welcomed at the door.) This lecture will be recorded and posted shortly after the presentation, as are all our events since 2020. About the Speaker: Harold Tobin is a Professor and Paros Endowed Chair in Seismology and Geohazards and Director of the Pacific… Read more2024-10-05 Harold Tobin – Lessons from a fossil Cascadia Megathrust in the high Olympic Mountains