{'fraction_non_alphanumeric': 0.027586206896551724, 'fraction_numerical': 0.016748768472906402, 'mean_word_length': 5.271604938271605, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 1, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Energy taken up by co‐seismic chemical reactions during a large earthquake: An example from the 1999 Taiwan Chi‐Chi earthquake

Frictional heat in a fault zone during earthquake slip transiently induces chemical reactions that may use energy released during the earthquake. We estimated the energy used by such reactions (EC) by a numerical analysis incorporating frictional heat, thermal diffusion, chemical kinetics, and energy conservation, and found that EC has an auto‐feedback effect that inhibits temperature rise in fault zone. During the 1999 Taiwan Chi‐Chi earthquake, estimated EC was 0.43 MJ/m2, corresponding to 0.79% of the frictional heat generated. This low percentage probably reflects the low initial concentrations of reactive materials. However, in the case of a fault with abundant reactive materials, EC could reach >50% of the frictional heat and the auto‐feedback effect could be large. At this case EC is a nonnegligible component on earthquake energy budget and can affect fault mechanics.