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Fig. 3. | Earth, Planets and Space

Fig. 3.

From: Magnitude determination using duration of high frequency energy radiation and displacement amplitude: application to the 2011 off the Pacific coast of Tohoku Earthquake

Fig. 3.

Contributions to magnitudes from maximum displacement amplitudes and epicentral distances (the horizontal axis) and those from durations of HFER (the vertical axis) are plotted for events analyzed by Hara (2007a, b, 2009) and large (Mw≥ 7.2) shallow (depths ≤ 50 km) earthquakes that occurred from July, 2006 to the 2011 off the Pacific coast of Tohoku Earthquake. Non-tsunami earthquakes and tsunami earthquakes are represented by solid squares and crosses, respectively. The 2011 off the Pacific coast of Tohoku Earthquake and the December 26, 2004, Sumatra earthquakes are identified.

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