(who knows yet) The strongest ever recorded has been a 9.5 magnitude in Chile (1977) http://earthquake.usgs.gov/earthquakes/world/10_largest_world.php. mercalli scale. Measures earthquake damage, the level of intensity of the earthquake, and the effect of the event on people.
Air Force Memo For Record (MFR) The memorandum for record (commonly referred to as Memo for Record, MR, or MFR) is used as an informal, in-house document. People working together generally pass information back and forth verbally but sometimes it needs to be recorded and filed for future reference. A Memo for Record is perfect for this purpose.
A mass airflow sensor. A mass (air) flow sensor (MAF) is used to find out the mass flowrate of air entering a fuel-injected internal combustion engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine.