Abstract
Yet an unexplained large explosion happened on 30. June 1908 deep in Siberia, Russia.
Known as Tunguska Event this phenomenon has been tested by many hypotheses so far. Native people described long-lasting thunder and long-lasting bright glow from the direction of the epicenter of the event.
A large area of damaged forests with trees fallen down was found later. Many expeditions were done to the epicenter during the last decades.
The site is in a remote location, deep in Siberia, where are dense forests, large swamps, extreme temperatures, and wild animals. Any geophysical measurements and fieldwork are though in such an environment.
We decided to carry out a magnetometer survey of the Tunguska Event epicenter. A detailed magnetometer survey hasn't been done yet in this area.
Magnetic anomalies in epicenter and deviations from anomalies driven by geology could reveal the mechanism or cause of the explosion in Tunguska. Our survey is UAV based magnetometer survey so we were able to measure a large number of points in a relatively short time period and regardless of the terrain difficulty.
Using UAVs (drones) we were able to collect a significant amount of data. We plotted the data to map of magnetic anomalies.
Most of the anomalies which we recorded over the epicenter correspond with the known geological situation of the area.