USGS Energy and Broadband Solution
Sample Energy Solution and Explanation of Parameters
Southern India | Geographic region 01/01/26 03:16:41 UTC | Date and origin time (UTC) Epicenter: 23.40N 70.32E | Epicenter: Latitude and Longitude | Broadband Source Parameters: | ENERGY MAGNITUDE Me 7.7 | Energy magnitude. RADIATED ENERGY | Energy 7.0*10**15 Nm | Radiated energy in Newton-Meters. No. of sta: 10 Focal mech. F | Number of stations used. | Type of focal mechanism used: | F (broadband fault plane solution) or | M (Rapid Moment Tensor solution). BROADBAND DEPTH: 16.0 km | Depth from synthetics or | differential travel-times of depth | phases from broadband displacement | seismograms. BROADBAND FAULT PLANE SOLUTION: | NP1:Strike=300 Dip=45 Slip= 120 | Nodal planes of double-couple focal NP2: 81 52 6 | mechanism from synthetics of Principal Axes: | broadband displacement waveforms. T Plg=69 Azm=289 | P 4 189 | COMMENT: Complex earthquake observed on broadband displacement seismograms. A small event is followed by a larger one about 2 seconds later. Focal mechanism and depth based on second event.