(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.
Mass Air Flow Sensor (MAF) A Mass Airflow Sensor (MAF) is one of the components of a car electronic fuel injection system. A mass air flow sensor is installed between the air filter and the intake manifold of the engine. The main job of the mass air flow sensor is to measure the amount of air entering the engine or air flow. Often an intake air temperature sensor (IAT) is also installed within the mass air flow sensor.