The geologist in me frequently gets asked questions, and yesterday's question was "where is the plate boundary between Europe and Africa? My immediate answer was that the entire Mediterranean is a tectonic mess (it has the oldest remaining ocean crust that has not been caught up in mountain building and thrust up onto a continent), and consists of lots of little blocks ground up by the motion between the two big plates. Then I had to do some research.
The motion between the two plates is very slow, about 5 mm/year (or 5 km/million years). The mid Atlantic Ridge, which we think of as very slow, is several times faster, and the East Pacific Rise about 20 times faster. Not much motion, then slow build up of stress, and not much in the way of earthquakes.
Map showing three versions of the plate boundaries.
1. In green, the most common one available on the web from multiple sources without a clear origin. Note that it stops when you get into the Med.
2. In purple, Peter Bird's boundaries from 2003. Note that a bit of northern Morocco joins with part of Spain, showing the geology predicted the cultural and historical linkages across the Strait of Gibraltar.
3. In red, probably the best, from USGS. Note that it also is not continuous, and tightly joins parts of Morocco and Spain. In detail the boundary is probably a complex 3D structure, with some very deformed rocks.
All three versions show that the data sets may not have been created to blow up to this scale. Someone drew lines on a map, maybe not as high quality as I can call up at a moment's notice, and generalized by not showing every zig and zag. But we tend to think they are the "truth".
Earthquakes in northern Morocco and vicinity. This is a restricted data set, with medium to large earthquakes which allow determination of the type of fault which ruptured and probably includes all those with significant damage, but should reflect the overall pattern of seismicity. Morocco has relatively few earthquakes, but some have been very damaging. Note the much greater numbers of earthquakes on the west side of the map, along the Mid Atlantic Ridge, a much more active plate boundary.
Global earthquakes. Note they occur along the plate boundaries and active mountain belts, especially in the Pacific "Ring of Fire", which this map downplays because the Pacific is split on the two sides of the map.
Even if the plate boundary is not as active or impressive as that in the Himalayas, the collision between Africa and Europe created the Atlas and the Moroccan landscape, which includes the highest point in North Africa.