A seismic swarm affected the Pacific basin and western United States on 2–3 September 2026, including magnitude 5.6–6.3 quakes in Indonesia, Mexico, the East Pacific Rise, South Sandwich Islands, and the US. The largest event, a 6.3-magnitude quake in the US on 3 September, affected approximately 4,000 people at Modified Mercalli Intensity III or higher.
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On 9/2/2026 12:04:54 AM, an earthquake occurred in Indonesia potentially affecting 410 thousand in MMI IV. The earthquake had Magnitude 5.6M, Depth:64.644km.
On 9/2/2026 12:28:31 PM, an earthquake occurred in Mexico potentially affecting 550 thousand in MMI IV. The earthquake had Magnitude 5.6M, Depth:10km.
On 9/2/2026 12:35:56 PM, an earthquake occurred in Southern East Pacific Rise potentially affecting [unknown]. The earthquake had Magnitude 5.9M, Depth:10km.
On 9/2/2026 11:46:57 PM, an earthquake occurred in South Sandwich Islands Region potentially affecting [unknown]. The earthquake had Magnitude 6.2M, Depth:125.905km.
On 9/3/2026 11:17:24 AM, an earthquake occurred in United States potentially affecting 4 thousand in MMI>=III. The earthquake had Magnitude 6.3M, Depth:35km.
On 9/3/2026 8:21:15 PM, an earthquake occurred in United States potentially affecting Few people affected in MMI III. The earthquake had Magnitude 5.5M, Depth:10km.