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

Ching-Chou Fu1, Lou-Chuang Lee1, Tsanyao F Yang2, Peng-Gang Wang1, Tsung-Kwei Liu3, Vivek Walia4, Cheng-Hong Chen3, Cheng-Horng Lin5, Tzu-Hua Lai6, Gioacchino Giuliani7 and Dimitar Ouzounov8, (1)Institute of Earth Sciences Academia Sinica, Taipei, Taiwan, (2)NTU National Taiwan University, Taipei, Taiwan, (3)Natl Taiwan Univ, Dept. Geosciences, Taipei, Taiwan, (4)NCREE National Center for Research on Earthquake Engineering of Taiwan, Taipei, Taiwan, (5)Taiwan Volcano Observatory at Tatun, Taipei, Taiwan, (6)Central Geological Survey, Taipei, Taiwan, (7)Permanent Foundation G. Giuliani, L'Aquila, Italy, (8)American Geophysical Union, Washington, DC, United States