Question

An earthquake occurs at 10:05

Answer 1

An earthquake occurs at 10:05 a.m. At 10:09 a.m., the first P-wave from this earthquake is detected at a seismic station. Approximately 2000 kilometers (km) from the epicenter is this seismic station located. Seismic stations are divided into long-range and regional stations depending on the tasks they perform.

Answer 2

2000 km from the epicenter is this seismic station located.

A seismic station consists of a seismometer, data acquisition system, and communication equipment buried in a sealed, thermally insulated chamber, or vault, about six feet below the surface.