🔥 SEMERU IS INTENSIFYING AND FAST 🌋🇮🇩 21 NOVEMBER 2025 New satellite data confirms a massive spike in Semeru’s radiative power, meaning the volcano is now releasing far more heat and energy than earlier in the eruption. When a volcano’s thermal output jumps this sharply, it’s one of the clearest signs that something bigger is happening beneath the surface. ⚠️ Key concerns right now: • Lava channels heating and expanding • Ash clouds growing thicker and more explosive • Surrounding mountains