MS-4. MS-4 is a four zone conventional fire alarm control panel compatible with the new I3 smoke detectors from System Sensor, and provides such advanced features as drift compensation, maintenance alert, and freeze warning.
Largest in the 20th Century. The 1960 chile earthquake was generated when rocks in a subduction zone became locked. The Nazca Plate is a small oceanic plate that is moving eastward toward the continent of South America.The South American Place is moving westward due to the Mid-Atlantic Ridge as it separates.argest in the 20th Century. The 1960 chile earthquake was generated when rocks in a subduction zone became locked. The Nazca Plate is a small oceanic plate that is moving eastward toward the continent of South America.
The Worldâs largest earthquake with an instrumentally documented magnitude occurred on May 22, 1960 near Valdivia, in southern Chile. It was assigned a magnitude of 9.5 by the United States Geological Survey. It is referred to as the Great Chilean Earthquake and the 1960 Valdivia Earthquake.The United States Geological Survey reports this event as the largest earthquake of the 20th Century.Other earthquakes in recorded history may have been larger, however this is the largest earthquake that has occurred since accurate estimates of magnitude became possible in the earnly 1900's.he United States Geological Survey reports this event as the largest earthquake of the 20th Century. Other earthquakes in recorded history may have been larger, however this is the largest earthquake that has occurred since accurate estimates of magnitude became possible in the earnly 1900's.