A 5.4 magnitude earthquake shook central Peru on Monday afternoon, July 15. The moderate quake struck at 22:35 GMT. The epicenter was 120 kilometers (75 miles) northeast of Oxapampa and 360 kilometers (224 miles) northeast of Lima. Its depth was 145.2 kilometers (90.2 miles).
Oxapampa is the capital city of Oxapampa, a province on the eastern side of the Pasco Region in central Peru. The city has a population of approximately 10,000. It is part of the South American arc that extends from southern Chile to southern Panama. The arc forms a boundary between the Nazca and South America plates. The Nazca’s oceanic crust and upper mantle descend under South America. This accounts for the uplift of the Andes Mountains as well as the active volcanoes in the area. The South America plate is fixed but the Nazca moves slightly. This constant friction produces earthquakes.
Written by: Cynthia Collins, Guardian Correspondent