Flasher event• Flasher at 2250m

illuminates all strings below the dust layer

• It reaches more than 625 m.

• No lights appears to penetrate the dust layer

• This event corresponds to about 300 TeV energy cascade.

• A 10 PeV cascade (and probably a muon if it makes a good brem) would reach more than 700m.

Approximate shape of a flasher eventat 2250m