RT Journal Article SR Electronic T1 Notices of recent earthquakes; No. 4 JF American Journal of Science JO Am J Sci FD American Journal of Science SP 384 OP 387 DO 10.2475/ajs.s3-7.40.384 VO s3-7 IS 40 A1 C. G. Rockwood YR 1874 UL http://www.ajsonline.org/content/s3-7/40/384.abstract AB