Eruption frequency and magnitude in a geothermally active continental rift: The Bora-Baricha-Tullu Moye volcanic complex, Main Ethiopian Rift by Tadesse, AZ, Fontijn, K, Melaku, AA, Gebru, EF, Smith, VC, Tomlinson, E, Barfod, D, Gopon, P, Bégué, F, Caricchi, L, Laha, P, Terryn, H, Gudbrandsson, S, Yirgu, G, Ayalew, D