Pyroclastic Southern Sinus Aestuum was captured by Astronominsk from the unnamed crater of interest at center of the Moon. The image is captured as seen from the center of Earth and pictures Mosaic of the Moon. The image was captured on August 8, 2012 by Halcrow telescope of NASA and is expected to broadcast more images and details about this Pyroclastic flow.

The minor pyroclastic flow are caused by small collapses of the mountain dome and flows towards valleys and occurs due to high pressure of hot lava inside the mountain dome and hot gases will continue to pour from them and will create a large hot mass around the surface area.

U.S. Geological Survey had found that the compositions of lava from the past eruptions and the association of vents with groundwater and the Salt in the Sea suggest that pyroclastic flows and surges and explosive volcanos will occur frequently once the eruptions are started.

Pyroclastic rocks or pyroclastics are clastic rocks composed solely or primarily by the flow of the molten lava mixing with water. A pyroclastic flow is also called as pyroclastic density current in scientific terms. These are a fast-moving current of super heated gas and rock from a volcano eruption.