dhamaystir weedha soo socota: Oktoobar 11, 1918, xeebta galbeed ee Puerto Rico waxaa ku dhuftay
Dhulgariir xoog leh oo sababay tsunami. Dhulgariirkii 1918 waxaa sababay qalad hore oo garab bidix ah oo u dhow Mona Passage. Sanadkii 1953, Santo Domingo, Dominican Republic, waxaa saameeyay dhulgariirkii Santo Domingo. Aagga dhabta ah ee hoos u dhaca (Puerto Rico Trench) ma uusan dillaacin in ka badan 200 oo sano, taas oo ah walaac weyn oo ku saabsan geophysicists, maadaama ay aaminsan yihiin inay sababi karto dhacdo weyn.