🌋 Earthquake Aftershock Sequence: Omori Decay, Gutenberg-Richter b-value and Shaking Attenuation Lab

Generate a mainshock and its aftershock catalogue: Omori-Utsu power-law rate decay, truncated Gutenberg-Richter magnitudes, Bath's law for the largest aftershock, Aki's b-value estimate with its sampling error, energy per magnitude step and illustrative shaking-intensity rings around the rupture.