John Lord (Jack) Boatwright, a seismologist at the U.S. Geological Survey (USGS) in Menlo Park, California, died on 20 September 2018 of interstitial lung disease, a complication of the bone marrow transplant he received in 2008 to treat leukemia.

Jack had an abiding interest in earthquake source theory, a focus on the intensity of shaking during past earthquakes, and a drive to ensure that earthquake science was used to formulate and carry out public policies to mitigate risks. The City and County of San Francisco issued a proclamation in honor of Jack’s work to strengthen the resilience of the Bay...

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