1983 Borah Peak earthquake

Target entity: 1983 Borah Peak earthquake
Context triple: [Lost River Range, notableEvent, 1983 Borah Peak earthquake]

• A. 1959 Hebgen Lake earthquake
  The 1959 Hebgen Lake earthquake was a powerful magnitude 7.3–7.5 quake in southwestern Montana that triggered a massive landslide, created Quake Lake, and caused significant casualties and damage in the Madison River Canyon.
• B. 1999 Hector Mine earthquake
  The 1999 Hector Mine earthquake was a powerful magnitude 7.1 strike-slip earthquake in the Mojave Desert of Southern California that caused widespread ground rupture and was one of the largest earthquakes in the region in the late 20th century.
• C. 1968 Borrego Mountain earthquake
  The 1968 Borrego Mountain earthquake was a powerful magnitude 6.5–6.8 temblor in Southern California that caused significant surface rupture and damage, and became an important case study in modern seismology and fault mechanics.
• D. 1964 Alaska earthquake
  The 1964 Alaska earthquake was a massive magnitude 9.2 megathrust quake—the second-largest ever recorded—that devastated parts of southern Alaska and triggered widespread tsunamis across the Pacific.
• E. 1992 Landers earthquake
  The 1992 Landers earthquake was a powerful magnitude 7.3 strike-slip earthquake in Southern California that ruptured multiple faults, caused widespread damage, and significantly advanced understanding of complex fault systems.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: 1983 Borah Peak earthquake
Target entity description: The 1983 Borah Peak earthquake was a powerful magnitude 6.9 quake in central Idaho that caused significant surface faulting, damage, and fatalities, making it one of the largest and most destructive earthquakes in the state's history.

• A. 1959 Hebgen Lake earthquake
  The 1959 Hebgen Lake earthquake was a powerful magnitude 7.3–7.5 quake in southwestern Montana that triggered a massive landslide, created Quake Lake, and caused significant casualties and damage in the Madison River Canyon.
• B. 1999 Hector Mine earthquake
  The 1999 Hector Mine earthquake was a powerful magnitude 7.1 strike-slip earthquake in the Mojave Desert of Southern California that caused widespread ground rupture and was one of the largest earthquakes in the region in the late 20th century.
• C. 1968 Borrego Mountain earthquake
  The 1968 Borrego Mountain earthquake was a powerful magnitude 6.5–6.8 temblor in Southern California that caused significant surface rupture and damage, and became an important case study in modern seismology and fault mechanics.
• D. 1964 Alaska earthquake
  The 1964 Alaska earthquake was a massive magnitude 9.2 megathrust quake—the second-largest ever recorded—that devastated parts of southern Alaska and triggered widespread tsunamis across the Pacific.
• E. 1992 Landers earthquake
  The 1992 Landers earthquake was a powerful magnitude 7.3 strike-slip earthquake in Southern California that ruptured multiple faults, caused widespread damage, and significantly advanced understanding of complex fault systems.
• F. None of above. chosen