82 |1871 XII 9 7 30 |VIII |Most violent earthquake in the same | | |regions of Lanao and Cotabato, which | | |completed the devastation of the | | |preceding. Also in this earthquake several | | |separate groups of shocks could be | | |distinguished, which occurred within the | | |space of a little more than half an hour. | | |The subterranean noises were much stronger | | |than on the preceding day and caused | | |consternation. During the first few days | | |following these quakes occurred uncounted | | |repetitions, some of which, like the | | |principal earthquakes, were perceptible | | |not only throughout Mindanao, but likewise | | |in the Visayas up to distances exceeding | | |500 kilometers. | | | 83 |1871 XII 19 22 30 | VII |Very violent earthquake throughout the | | |length of eastern Mindanao, from Surigao | | |to Davao. It was likewise very perceptible | | |on Samar and Leyte Islands. For a number | | |of days there were many repetitions, some | | |of them very intense, notably those which | | |took place on the 21st and 22d. | | | 84 |1872 I 26 19 30 | VII |Violent earthquake close to the coast of | | |Zambales, near the town of Agno. The | | |shock was repeated ten to twelve times, | | |accompanied by subterraneous noises; an | | |extraordinary wave was seen in the sea | | |close to the coast and in the Agno River | | |which empties into the sea near the town. | | |The affected area was very small, which | | |makes it appear probable that the cause | | |must be sought in some displacements in | | |the scarps of the coast. | | | 85 |1872 I 27 16 30 | VI |Very strong earthquake in the Province of | | |Ilocos Norte, followed by numerous | | |repetitions of considerable intensity | | |during the 28th, 29th, and 30th. | | | 86 |1872 VII 22 22 50 | VI |Camarines and Albay. Very strong | | |earthquake, followed by frequent