What is Guatemala's seismic risk?

According to INSIVUMEH, Guatemala lies near the junction of three tectonic plates: to the south, a convergent (subduction) boundary between the Caribbean plate and the Cocos plate, which is the subducted plate;… in the centre of the country,… the contact between the North American and Caribbean plates, a left-lateral transform boundary. The most prominent seismically active faults, the Motagua and Polochic faults, are related to that transform zone; INSIVUMEH lists among the large historical earthquakes those of Jul 22, 1816 (Mw 7.5, Polochic fault) and 4 February 1976 (Mw 7.5, Motagua fault), with a rupture length of approximately 230 km. A 1976 article by George Plafker published in Science (USGS record) attributes the 1976 earthquake mainly to slip on the Motagua fault, part of the great transform fault system that defines the boundary between the Caribbean and North American plates, and warns that, because of their proximity to areas of high population density, shallow-focus earthquakes on the Motagua fault system, on the extensional faults of the western Caribbean plate and those associated with volcanism may pose a more serious seismic hazard than the more numerous but generally more distant earthquakes of the subduction zone.