Cameroon
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Cameroon is located in Africa and has a Low seismic risk classification. A total of 0 earthquakes have been recorded in the country's seismic history. With a population of 29,442,327 and a land area of 475,442 km², seismic events can have significant implications for infrastructure and public safety.
Seismic Overview
Cameroon presents an unusual seismic and volcanic setting characterised by the Cameroon Volcanic Line, a chain of volcanoes and volcanic massifs that extends roughly 1,600 kilometres from the island of Bioko (Equatorial Guinea) in the Gulf of Guinea northeast across the continent to the Adamawa Plateau and the Mandara Mountains. This volcanic chain does not follow a traditional plate boundary but instead lies within the African plate interior, probably above a linear zone of mantle upwelling or a series of hotspot tracks.
The most seismically significant feature along the Cameroon Volcanic Line is Mount Cameroon (4,095 m), an active stratovolcano and the highest peak in sub-Saharan West Africa. Eruptions in 1959, 1982, 1999, 2000, and 2012 were each accompanied by earthquake swarms as magma migrated through the volcanic plumbing system. The 1999 eruption was particularly well studied and showed a clear escalation of [[seismic-wave]] activity in the days before lava emerged on the flanks. The Limbe area at the foot of the volcano has experienced locally damaging earthquake shaking associated with intrusive events.
Lake Nyos, a crater lake in northwestern Cameroon, became tragically famous on 21 August 1986 when it released a massive cloud of carbon dioxide that asphyxiated approximately 1,700 to 1,800 people and thousands of livestock in surrounding villages. While not a conventional earthquake, the limnic eruption was preceded by minor seismic activity and involved the explosive release of CO₂ that had accumulated in CO₂-saturated bottom waters of the crater lake. A similar but smaller event killed 37 people at nearby Lake Monoun in 1984.
The tectonic setting of Cameroon beyond the volcanic line is dominated by the stable Congo craton in the south and the old basement of the Pan-African orogenic belt. Occasional [[fault]]-related earthquakes have been recorded in the Cameroon Highlands, the Adamawa Plateau, and near the border with Nigeria, where ancient basement faults can be reactivated by regional stress. [[magnitude]] events above 5.0 are rare but not unknown in northern Cameroon, where the influence of the distant East African Rift stress field is faintly detectable.
Recent Earthquakes
| Mag | Location | Time | |
|---|---|---|---|
| No recent earthquakes. | |||
Notable Historical Events
Earthquakes Near Major Cities in Cameroon
Frequently Asked Questions
Cameroon has a low level of seismic activity. Large earthquakes are infrequent but not impossible. A total of 0 earthquakes have been recorded in Cameroon's seismic history.
Cameroon has had 0 recorded earthquakes. This count includes events of all magnitudes detected by seismic monitoring networks. The actual number of earthquakes may be higher, as smaller events can go undetected.
Cameroon is classified in the "Low" seismic zone, located in Africa. Seismic zones indicate the relative level of earthquake hazard based on historical activity, geological conditions, and proximity to tectonic plate boundaries.
During an earthquake, Drop, Cover, and Hold On. Get under a sturdy desk or table, protect your head and neck, and hold on until shaking stops. Move away from windows and heavy objects. After the earthquake, check for injuries and be prepared for aftershocks.
Country earthquake risk is assessed using several factors: proximity to tectonic plate boundaries, historical seismicity (frequency and magnitude of past events), geological conditions, population density in seismic zones, and building code enforcement. QuakeFYI assigns seismic zones from 0 (no risk) to 4 (very high) based on these factors.
A seismic zone is a geographic area classified by the level of earthquake hazard. Zone 0 has negligible risk, Zone 1 has low risk, Zone 2 has moderate risk, Zone 3 has high risk, and Zone 4 has very high risk. These zones are determined by historical earthquake data, tectonic setting, and geological conditions.
Countries along the Pacific Ring of Fire experience the most earthquakes. Japan, Indonesia, Chile, the Philippines, and Iran consistently record the highest seismic activity. The United States (especially Alaska and California), Turkey, and Mexico are also among the most seismically active nations.
Population density amplifies earthquake risk because more people and infrastructure are exposed to potential damage. A magnitude 7.0 earthquake in a densely populated city can cause thousands of casualties, while the same event in an uninhabited area may cause none. Building codes and emergency preparedness greatly reduce risk in populated areas.
Seismic density measures the concentration of earthquake activity relative to a country's land area, expressed as earthquakes per 1,000 square kilometers. A high seismic density indicates frequent earthquake activity per unit area, helping compare seismic risk between countries of different sizes.