1989 Loma Prieta AKA San Francisco Earthquake
Britannica
ProQuest eLibrary
CA Dept. of Conservation
USGS. gov
Shakemotion Video
2009 L'Aquila Earthquake
Internet Geography
Britannica (Causes)
Chicago Heat Wave 1995
National Weather Service
CBS News
CBS Video
European Heatwave 2020's
Copernicus Climate Change
Earth.org
Oakland Hills Fire 1991
History.com
KTVU Video
KCRA
KQED
Russian Fires 2010
Springer
Nasa.gov
Radio Free Europe
Black Saturday Bushfire 2009
National Museum of Australia
European Space Agency
BBC
Amazon Fires 2018
CNBC
National Geographic
Business Insider
