The deadline to submit a session, town hall, or pre-conference workshop proposal for AGU25 has passed. Please search for and review proposed sessions below. Please note this site is frozen as of 4/29/25 and will not reflect any changes to proposals made after this date.


Conveners will be contacted by the AGU25 Program Committee with any requests for mergers or edits to proposals. Conveners will be notified of the acceptance of their proposal in mid-June.


Abstract submissions will also open in mid-June and the deadline for abstract submissions is 30 July, 2025.


Please visit the AGU25 website for more information or please contact AGU with any questions.

Abstract: Revisiting an Enigma on California's North Coast: The M6.5 Fickle Hill Earthquake of 21 December 1954 (AGU25)

Revisiting an Enigma on California's North Coast: The M6.5 Fickle Hill Earthquake of 21 December 1954

Margaret Hellweg1, Thomas A. Lee2, Douglas Dreger1, Anthony Lomax3, Lijam Hagos4, Hamid Haddadi4, Robert C McPherson5, Lori Dengler6, Susan Elizabeth Hough7 and Jason R Patton8, (1)University of California Berkeley, Berkeley Seismology Lab, Berkeley, United States, (2)University of Hawaii, Hilo, Geology Department, Hilo, United States, (3)ALomax Scientific, Mouans-Sartoux, France, (4)California Geological Survey, Sacramento, United States, (5)Cal Poly Humboldt, Arcata, CA, United States, (6)Cal Poly Humboldt, Arcata, United States, (7)U.S. Geological Survey, Earthquake Science Center, Pasadena, United States, (8)California Geological Survey Sacramento, Arcata, CA, United States