List of earthquakes in 1991

Earthquakes in 1991

class=notpageimage| Approximate epicenters of the earthquakes in 1991 4.0–5.9 magnitude 6.0–6.9 magnitude 7.0–7.9 magnitude 8.0+ magnitude
Strongest magnitude	7.6 Mw Costa Rica 7.6 Mw  Russia
Deadliest	6.8 Mw India 2,000 deaths
Total fatalities	3,498
Number by magnitude
9.0+	0
4.0–4.9	4,304
← 1990 1992 →

This is a list of earthquakes in 1991. Only earthquakes of magnitude 6 or above are included, unless they result in damage or casualties, or are notable for some other reason. All dates are listed according to UTC time.