Radon and gamma rays anomalies observed in northern Taiwan: a possible connection with the seismicity near the subduction zone

Ching-Chou FU1, Lou-Chuang Lee2, Tsanyao F Yang3, Peng-Gang Wang2, Tsung-Kwei Liu4, Vivek Walia5, Cheng-Hong Chen4, Cheng-Horng Lin6, Tzu-Hua Lai7, Gioacchino Giuliani8 and Dimitar Ouzounov9, (1)Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan, (2)Institute of Earth Sciences Academia Sinica, Taipei, Taiwan, (3)NTU National Taiwan University, Taipei, Taiwan, (4)Natl Taiwan Univ, Dept. Geosciences, Taipei, Taiwan, (5)NCREE National Center for Research on Earthquake Engineering of Taiwan, Taipei, Taiwan, (6)Taiwan Volcano Observatory at Tatun, Taipei, Taiwan, (7)Central Geological Survey, Taipei, Taiwan, (8)Permanent Foundation G. Giuliani, L'Aquila, Italy, (9)American Geophysical Union, Washington, DC, United States