Stephen D. Malone

Research Professor Emeritus;

Ph.D., Geophysics, University of Nevada, Reno, 1972.


Seismicity of the Cascade volcanoes; Earthquake and volcanic hazards; Computer applications in seismic data acquisition and network analysis.

Malone head shot

As of fall, 2007 I have retired from full time work at the University of Washington. I am no longer the director of the Pacific Northwest Seismic network but continue as an emeritus professor involved in research and network operations. I no longer am advising students nor have funding to support them. I am continuing part time with my primary research interest in network seismology, earthquake hazards, Episodic Tremor and Slip (ETS) and volcano seismology. In the first case, I am interested in the technology of operating a modern digitally recorded regional seismograph network and assist at a low level with the operations of the PNSN. This system includes near real-time event processing and alarms which notify staff members of large earthquakes or equipment failure and provide information to the public and interested parties via e-mail and web pages. Field work in the eastern Cascades and on Mount Rainier provide a break from sitting in front of a computer.

Malone closeup picture With Postdoc in eatern Washington Malone at RCM

Earthquakes associated with volcanic processes have been a major research interest of mine for the past 35 years. I was the principal scientist responsible for the seismic monitoring of Mt. St. Helens and other Cascade volcanos, and was quite involved with the seismic prediction of past eruptions at St. Helens and the study of the volcanic conduit system using seismic data. More recently I have been investigating various aspects of the volcanic hazards of Mount Rainier and with non-volcanic tremor associated with slow-slip earthquakes.

I have been active in the Council of the National Seismic System and past chairman (1997-1999). I was a board member of the Seismological Society of America (1996-2002) and its Vice President (2001-2003) and President (2004-2005). I was on the Executive Committee of IRIS (2000-2003) and was also on the Technical Integration Committee of the Advanced Nation Seismic System and was its regional coordinator for the Pacific Northwest. I also was chosen as the IRIS/SSA Distinguished Lecturer for 2010. You can view one of these lectures on Predicting Earthquakes and Volcanic Eruptions.

There is fairly complete list of publications
There is a Short formal resume.

[Earth & Space Sciences]