Magnitude
A measure of earthquake size that describes the amount of energy released.
Mercali Scale
A rating scale for classifying the degree of ground shaking at a specific location. The scale is graded by roman numerals from I to XII.
Microzonation
Risk mapping on a very small scale. Within any particular area, there are numerous geological variations that make certain areas safer or more hazardous than others. Microzonation delineates each of these areas so that communities can select the safest possible sites for development or the location of critical facilities.
Mine
In land mine warfare, an explosive or other material, normally encased, designed to destroy or damage ground vehicles, boats, or aircraft, or designed to wound, kill, or otherwise incapacitate personnel. It may be detonated by the action of its victim, by the passage of time, or by controlled means. (Joint Pub 1-02)
Mine Awareness Operations
Operations designed to provide safety and public information to the HN populace with the intent to promote threat identification and avoidance.
Mine Clearance
The process of removing all mines from a route or an area. (Joint Pub 1-02)
Mine Countermeasures
All methods for preventing or reducing damage or danger from mines. (Joint Pub 1-02)
Mined Area
An area declared dangerous due to the presence or suspected presence of mines. (Joint Pub 1-02)
Mine Disposal
The operation by suitably qualified personnel designed to render safe, neutralize, recover, remove, or destroy mines. (Joint Pub 1-02)
Minefield
In land warfare, an area of ground containing mines laid with or without a pattern. (Joint Pub 1-02)
Minefield Lane
A marked lane, unmined or cleared of mines, leading through a minefield. (Joint Pub 1-02)
Minefield Survey
A detailed report that provides information on a suspected minefield, including its location, the extent of the mine problem identified, and the way the area is marked.
Minehunting
Employment of sensor and neutralization systems, whether air, surface, or subsurface, to locate and dispose of individual mines. Minehunting is conducted to eliminate mines in a known field when sweeping is not feasible or desirable or to verify the presence or absence of mines in a given area. (Joint Pub 1-02)
Minesweeping
The technique of clearing mines using either mechanical, ex-plosive, or influence sweep equipment. Mechanical sweeping removes, disturbs, or otherwise neutralizes the mine; explosive sweeping causes sympathetic detonations in, damages, or displaces the mine; and influence sweeping produces either the acoustic and/or magnetic influence required to detonate the mine. (Joint Pub 1-02)
Mitigation
The act of taking actions to reduce the harmful effects of a disaster. Mitigation accepts the occurrence of extreme natural phenomena, but attempts to limit both human and property loss.
Monitoring
Surveys of on-going activities to determine their progress and effectiveness
