Injection of electrons and protons with energies of tens of MeV into L < 3 on 24 March 1991

On 24 March 1991 instrumentation aboard CRRES observed the almost instantaneous injection of electrons and protons with energies above 15 MeV into the L‐region 2 < L < 3. The energy spectrum of the injected electrons, a power law (E −6 ) peaked at 15 MeV and continued to at least 50 MeV