Abstract
We determine mB, the original body wave magnitude developed by Gutenberg and Richter over the period 1942–1956, for about 3300 Mw ≥ 6 earthquakes for the period 1988–present using modern broad-band seismograms. The main objective is to extend the database of energy-related parameters by combining mB databases for recent and old events. The radiated energy ER_B (in erg) computed from mB using the Gutenberg & Richter relation |$\log {E_{\mathrm{ R}\_\mathrm{ B}}} = 2.4{m_\mathrm{ B}} + 5.8$| agrees very well with ER estimated with modern techniques, especially for large deep earthquakes. Thus, ER_B is useful as a proxy for ER to investigate the global diversity of earthquake characteristics and physics over an extended period of time.
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