Sensors, Seismographs, and Seismologists

After being woken up this morning in the ‘maid’s quarters,’ I ate a hurried breakfast and got into a truck with Uncle Richard, my father, and Victor, a seismologist for one of the colleges here in Arequipa. We drove out of town on a road that used to be the main throughway between Arequipa and Cusco. It is now mainly unused, so there was no traffic on our way up through the thousands of meters. We went up and up and finally arrived at the sensor housing that we were going to decommission.

The sensor was a metallic cylinder that weighed about 45 pounds and had an internal pendulum to measure quakes from different areas. It is expensive and fits into a plastic box about twice its size for shipping purposes. We officially decommissioned the sensor as soon as we had moved it from its specified corner where it had been resting for 5 years, pointing north. After we had packed everything away and taped the wires together, we rode back down the mountain.

When we got back to the flat, we messed around for a little bit before we all went with Victor to a mill, where there were llamas, and to a storage facility for the CalTech equipment. In the basement, there were several seismographs that were working while we talked. Victor turned up the amplifier for the sensor and made it look like there had been an earthquake on one of the seismographs for our amusement and we looked at the various sensors in the three rooms. When we were finished, we went back to the flat.

That’s all for now, Folks!