Claim: Japan's Sakurajima produced an explosive eruption at 814 UTC, sending a dense ash cloud more than three kilometers above sea level.
Verdict: Partially True (60% confidence)
Explanation: According to Reuters Connect, Sakurajima experienced an explosive eruption on August 2, 2026, sending a smoke plume 3000 meters above the crater. Newsflare also supports this, reporting a similar eruption height on July 21, 2026. However, neither source confirms the specific timing of 814 UTC for the eruption. The claim is partially true because the ash cloud height is verified, but the exact timing remains unconfirmed.