TY  - RPRT
TI  - The fortnightly tide and the tidal triggering of earthquakes
AU  - S. Hartzell
AU  - T. Heaton
PY  - 1989
DO  - 10.1785/bssa0790041282
UR  - https://pubs.usgs.gov/publication/70015511
ID  - 70015511
ER  -