Several minor earthquakes have occurred in our local region the past few days. The strongest earthquakes to strike Oregon in more than 50 yrs struck the southern part of the State on September 20, 1993. Above: A Map From USGS Showing a 2.2 Explosion Quake That Occurred Yesterday Morning Just North Of Klamath Falls Near Highway 97. In total, the earthquake caused damage in excess of $10 million and damage to the Klamath County Courthouse was so extensive … The Klamath earthquakes nearly a decade ago have faded into history, but the impact of that night and the following days have left permanent aftershocks in the memories of Klamath Basin residents. The doublet earthquake registered respective magnitudes of 6.0 and 5.9 on the moment magnitude scale. From the estimated moment-tensors and depths of the main shocks and … These shocks, a magnitude 5.9 earthquake at 8:28 PM and a magnitude 6.0 earthquake at 10:45 PM, were the opening salvo in a swarm of earthquakes that continued for more than three months. The 1993 Klamath Falls earthquakes took place in Klamath Falls, Oregon, beginning on Monday, 20 September at 8:28 p.m.The doublet earthquake registered respective magnitudes of 6.0 and 5.9 on the moment magnitude scale.The earthquakes were located at a depth of 5.6 miles (9 km) and tremors continued to be felt more than three months after the initial shocks. The 1993 Scotts Mills earthquake, also known as the "Spring break quake", occurred in the U.S. state of Oregon on March 25 at 5:34 AM Pacific Standard Time.With a moment magnitude of 5.6 and a maximum perceived intensity of VII (Very strong) on the Mercalli intensity scale, it was the largest earthquake in the Pacific Northwest since the Elk Lake and Goat Rocks earthquakes of 1981. We use regional broadband seismograms to obtain seismic moment-tensor solutions of the two September 20, 1993, M w =6, Klamath Falls, Oregon earthquakes, their foreshock and largest aftershocks (M D >3.5). Two of the most notable earthquakes to strike Klamath County occurred on September 20, 1993. A 2.2 “explosion quake” was recorded just north of Klamath Falls yesterday morning near highway 97. These earthquakes, centered near the community of Rocky Point, resulted in 2 fatalities and caused widespread damage to more than 1,000 buildings in Klamath Falls. The earthquakes were located at a … The 1993 Klamath Falls earthquakes took place in Klamath Falls, Oregon, beginning on Monday, 20 September at 8:28 p.m. Several sub-groups with internally consistent solutions indicate activity on several fault segments and faults. The 1993 Klamath Falls earthquakes took place in Klamath Falls, Oregon, beginning on Monday, 20 September at 8:28 p.m.The doublet earthquake registered respective magnitudes of 6.0 and 5.9 on the moment magnitude scale.The earthquakes were located at a depth of 5.6 miles (9 km) and tremors continued to be felt more than three months after the initial shocks.