events

The 6.3 Mw Al Hoceima earthquake strikes northern Morocco with a maximum Mercalli intensity of IX (Violent). At least 628 people are killed, 926 are injured, and up to 15,000 are displaced.

Seismic magnitude scales

Scales to describe earthquake strength

Seismic magnitude scales are used to describe the overall strength or "size" of an earthquake. These are distinguished from seismic intensity scales that categorize the intensity or severity of ground shaking (quaking) caused by an earthquake at a given location. Magnitudes are…
Source: Wikipedia (CC BY-SA)

2004 Al Hoceima earthquake

Earthquake near the northern Moroccan coast

The 2004 Al Hoceima earthquake occurred on 24 February at 02:27:47 local time near the coast of northern Morocco. The strike-slip earthquake measured 6.3 on the moment magnitude scale and had a maximum perceived intensity of IX (Violent) on the Mercalli intensity scale. Between…
Source: Wikipedia (CC BY-SA)

Morocco

Country in North Africa

Morocco, officially the Kingdom of Morocco, is a country in the Maghreb region of North Africa. It has coastlines on the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to the east, and the disputed territory of Western Sahara…
Source: Wikipedia (CC BY-SA)

Modified Mercalli intensity scale

Seismic intensity scale used to quantify the degree of shaking during earthquakes

The Modified Mercalli intensity scale measures the effects of an earthquake at a given location. This is in contrast with the seismic magnitude usually reported for an earthquake.
Source: Wikipedia (CC BY-SA)