Complex sentence: On November 12,1996, at 11:59 a.m. local time (16:59 GMT) there was an earthquake of magnitude 6.4 with its epicenter at 7.7 km into the sea, which almost completely destroyed the city of Nasca and its surroundings.
Split into simpler sentences: On November 12,1996, at 11:59 a.m. local time (16:59 GMT) there was an earthquake of magnitude 6.4 with its epicenter at 7.7 km into the sea. The earthquake almost completely destroyed the city of Nasca and its surroundings.