#Mud may not be what typically comes to mind when we think of #volcanic #eruptions. But it is mud, rather than #lava, that spews out of #volcanoes and buries #homes in sticky ooze in places like Trinidad and Tobago and Azerbaijan. Mud volcanoes can arise from #hot spring activity or the accumulation of hydrocarbon gases. They are often small—a few inches to several feet high—and harmless, with only cold mud bubbling up from volcano #craters. #photooftheday #science #earth #nature #hotsprings #facemask 📷 Shutterstock/Porojnicu Stallion