1. Being where earthquake waves arrive simultaneously
   - coseismic

See also: unstable

• extreme
• extreme point
• extreme right-winger
• extreme unction
• extremely
• extremely high frequency
• extremely low frequency
• extremeness
• extremism
• extremist
• extremity
• extremum
• extricable
• extricate
• extrication
• extrinsic
• extrinsic fraud
• extropic
• extropy
• extrorse
• extrospective
• extroversion
• extroversive
• extrovert
• extroverted