The 1921 Massawa earthquake took place off the coast of Massawa, Eritrea, on August 14 with a moment magnitude of 6.1 and a Mercalli intensity of VIII (Severe). The first aftershock after the initial earthquake was of similar magnitude. Significant damage was caused to the harbour at Massawa with a number of deaths reported. Aftershocks were felt as far away as Asmara and Dekemhare.
The 2003 Colima earthquake occurred on 21 January with a moment magnitude of 7.6 and a maximum Mercalli intensity of VIII (Severe). The epicenter was located on the Pacific coast in the Mexican state of Colima. The earthquake was felt as far away as Mexico City and in southern parts of the United States.
The 1933 Diexi earthquake occurred in Diexi, Mao County, Szechwan, Republic of China on August 25 with a moment magnitude of 7.3 and a maximum Mercalli intensity of X (Extreme). With up to 9,300 killed, this was the deadliest earthquake of 1933.
The 1976 Friuli earthquake, also known in Italy as Terremoto del Friuli, took place on May 6, 1976, with a moment magnitude of 6.5 and a maximum Mercalli intensity of X (Extreme). The shock occurred in the Friuli region in northeast Italy near the town of Gemona del Friuli. 990 people were killed, up to about 3,000 were injured, and more than 157,000 were left homeless.
The 1967 Koynanagar earthquake occurred near Koynanagar town in Maharashtra, India on 11 December local time. The magnitude 6.6 shock hit with a maximum Mercalli intensity of VIII (Severe). It occurred near the site of Koyna dam, raising questions about induced seismicity, and claimed at least 177 lives and injured over 2,200.
The 1988 Nepal earthquake occurred in Nepal near the Indian border and affected much of northern Bihar. The magnitude 6.9 earthquake shook the region on August 21, killing at least 709 persons and injuring thousands. The earthquake struck in two installments of 10 seconds and 15 seconds each and left cracks in 50,000 buildings, including Raj Bhavan and the old Secretariat Building in Patna, Bihar.
The 1980 El Asnam earthquake occurred on October 10 at with a moment magnitude of 7.1 and a maximum Mercalli intensity of X (Extreme). The shock occurred in the Algerian town of El Asnam. The shocks were felt over 550 km (340 mi) away, with the initial earthquake lasting 35 seconds. It was the largest earthquake in Algeria, and was followed three hours later by a magnitude 6.2 aftershock. The earthquake created about 42 km (26 mi) of surface rupture and had a vertical slip of up to 4.2 m (14 ft). No foreshocks were recorded. The earthquake was found to have occurred very close to the epicenter of the 1954 Chlef earthquake using joint epicenter determination techniques. It occurred at a previously unknown reverse fault.
Striking southern Italy on September 8, the 1905 Calabria earthquake had a moment magnitude of 7.2 and a maximum Mercalli intensity of XI (Extreme). The first major earthquake of the 20th century, it severely damaged parts of Lipari, Messina Province and a large area between Cosenza and Nicotera and killed between 557 and 2,500 people.
The 2003 Altai earthquake, or 2003 Chuya earthquake, occurred on September 27 at with a moment magnitude of 7.3 and a maximum Mercalli intensity of X (Extreme). The epicenter of this oblique-slip shock was in Altai Republic, Russia near the borders of Mongolia, China, and Kazakhstan. Three deaths and five injuries were reported and the total damage was listed as $10.6–33 million.
The 1973 Veracruz earthquake, also known as El Terremoto de Orizaba, occurred at 3:50 a.m. local time on August 28, with the epicenter located in the vicinity of Serdán in the Mexican state of Puebla. It registered 7.1 on the moment magnitude scale and had a maximum perceived intensity of VIII (Severe) on the Mercalli intensity scale. The effects were felt in the Mexican states of Veracruz and Puebla in southeast Mexico.
The 1935 Digor earthquake occurred on 1 May at Digor, Kars in the Eastern Anatolia region of Turkey. It had a moment magnitude of 6.1 and caused 540 fatalities.
The 1997 Cariaco earthquake occurred on July 9 at with a moment magnitude of 6.9 and a maximum Mercalli intensity of VIII (Severe). With its epicenter near Cariaco, Venezuela, at least 81 people were killed and over 500 were injured. Disruption of power, telephone, and water services was reported. This earthquake was felt in much of northeastern Venezuela and could also be felt in Trinidad and Tobago. This earthquake was on the strike-slip El Pilar Fault.
The 1975 Hawaii earthquake occurred on November 29 with a moment magnitude of 7.4 and a maximum Mercalli intensity of VIII (Severe). The shock affected several of the Hawaiian Islands and resulted in the deaths of two people and up to 28 injured. Significant damage occurred in the southern part of the Big Island totalling $4–4.1 million, and it also triggered a small brief eruption of Kilauea volcano.
The 1999 Aïn Témouchent earthquake occurred on December 22 at in northern Algeria. The dip-slip event had a moment magnitude of 5.6 and a maximum Mercalli intensity of VII. At least 22 were killed, 175 were injured, and 15,000 were homeless. The Belgian Centre for Research on the Epidemiology of Disasters' EM-DAT database and the USGS' National Geophysical Data Center both list financial losses of $60.93 million.
The 2004 Nabire earthquake occurred on November 26 in Papua, Indonesia. The strike-slip event had a moment magnitude of 7.1 and a maximum Mercalli intensity of VIII (Severe). Total deaths for the event amounted to 32, and the total number of injured was 130–213.
The 1981 Golbaf earthquake occurred on June 11 at with a moment magnitude of 6.6 and a maximum Mercalli intensity of VIII+ (Severe). Total damage was considered moderate and amounted to $5 million in financial losses, with many injured, and 1,400–3,000 killed.
The 2004 Baladeh earthquake occurred on May 28 in northern Iran. This dip-slip earthquake had a moment magnitude of 6.3 and a maximum Mercalli intensity of VIII (Severe). Total deaths for the event amounted to 35, with 278–400 injured, and $15.4 million in damage.
The 1974 Lesser Antilles earthquake occurred at on October 8 with a moment magnitude of 6.9 and a maximum Mercalli intensity of VIII (Severe). Four people were injured in what the United States' National Geophysical Data Center called a moderately destructive event.
