⚠️ The Deep Chamber Under LA That Can Supercharge the Next Quake ⚠️ A new seismic study has revealed a massive underground drop beneath Los Angeles, reaching almost ten kilometers. This deep chamber can bend and concentrate earthquake energy and drive shaking to far more dangerous levels than surface maps suggest. The mantle boundary is rising close to the surface and the crust beneath the city is severely thinned. Together these features create conditions for stronger and longer shaking during