62 citations as recorded by crossref.

1. VLF/LF Amplitude Perturbations before Tuscany Earthquakes, 2013 B. Khadka et al. 10.4236/ns.2017.912041
2. Precursors signatures of few major earthquakes in Italy using very low frequency signal of 45.9 kHz K. Kandel et al. 10.1007/s11600-019-00316-z
3. Statistical Evaluations of Variations in Dairy Cows’ Milk Yields as a Precursor of Earthquakes H. Yamauchi et al. 10.3390/ani7030019
4. The Study on Anomalies of the Geomagnetic Topology Network Associated with the 2022 Ms6.8 Luding Earthquake Z. Yu et al. 10.3390/rs16091613
5. VLF/LF Radio Sounding of Ionospheric Perturbations Associated with Earthquakes M. Hayakawa 10.3390/s7071141
6. Unusual behaviour of VLF signal parameters before the devastating Nepal earthquake of 25th April, 2015 A. Choudhury et al. 10.1007/s12648-025-03656-3
7. Predicting the unpredictable; evidence of pre‐seismic anticipatory behaviour in the common toad R. Grant & T. Halliday 10.1111/j.1469-7998.2010.00700.x
8. Lithosphere–Atmosphere–Ionosphere Coupling Effects Based on Multiparameter Precursor Observations for February–March 2021 Earthquakes (M~7) in the Offshore of Tohoku Area of Japan M. Hayakawa et al. 10.3390/geosciences11110481
9. Variation in the VLF signal noise amplitude during the period of intense seismic activity in Central Italy from 25 October to 3 November 2016 A. Nina et al. 10.3389/fenvs.2022.1005575
10. Precursory effects in the nighttime VLF signal amplitude for the 18th January, 2011 Pakistan earthquake S. Ray et al. 10.1007/s12648-012-0014-5
11. Investigation of the relationship between ionospheric foF2 and earthquakes T. Karaboga et al. 10.1016/j.asr.2018.01.015
12. On the generation of narrow‐banded ULF/ELF pulsations in the lower ionospheric conducting layer V. Sorokin & M. Hayakawa 10.1029/2008JA013094
13. A statistical study on the correlation between lower ionospheric perturbations as seen by subionospheric VLF/LF propagation and earthquakes M. Hayakawa et al. 10.1029/2009JA015143
14. The 25 April 2015 Nepal Earthquake: Investigation of precursor in VLF subionospheric signal A. Maurya et al. 10.1002/2016JA022721
15. Air ionization at rock surfaces and pre-earthquake signals F. Freund et al. 10.1016/j.jastp.2009.07.013
16. An Amateur-Radio-Based Open-Source (HW/SW) VLF/LF Receiver for Lower Ionosphere Monitoring, Examples of Identified Perturbations F. Malkotsis et al. 10.3390/foundations2030044
17. VLF Signal Noise Reduction during Intense Seismic Activity: First Study of Wave Excitations and Attenuations in the VLF Signal Amplitude A. Nina 10.3390/rs16081330
18. Ionospheric anomalies detected by ionosonde and possibly related to crustal earthquakes in Greece L. Perrone et al. 10.5194/angeo-36-361-2018
19. A multi-experiment approach to ascertain electromagnetic precursors of Nepal earthquakes S. Sharma et al. 10.1016/j.jastp.2019.105163
20. A Critical Review of Ground Based Observations of Earthquake Precursors L. Conti et al. 10.3389/feart.2021.676766
21. Ionospheric perturbations due to earthquakes as determined from VLF and GPS-TEC data analysis at Agra, India D. Singh et al. 10.1016/j.asr.2017.11.017
22. Geospace perturbations induced by the Earth: The state of the art and future trends A. De Santis et al. 10.1016/j.pce.2015.05.004
23. Reply to Comment on “Preseismic lithosphere‐atmosphere‐ionosphere coupling” M. Kamogawa 10.1029/2007EO230009
24. On the statistical correlation of over-horizon VHF signals with meteorological radio ducting and seismicity N. Yonaiguchi et al. 10.1016/j.jastp.2007.01.007
25. Correlation of earthquake occurrence among major fault zones in the eastern margin of the Tibetan Plateau through Big Data Analysis H. Zhang et al. 10.59717/j.xinn-geo.2025.100145
26. Multi-Parameter Observations of Seismogenic Phenomena Related to the Tokyo Earthquake (M = 5.9) on 7 October 2021 M. Hayakawa et al. 10.3390/geosciences12070265
27. Changes in animal activity prior to a major (M= 7) earthquake in the Peruvian Andes R. Grant et al. 10.1016/j.pce.2015.02.012
28. Reduction of the VLF Signal Phase Noise Before Earthquakes A. Nina et al. 10.3390/atmos12040444
29. Characteristic Variations of VLF/LF Signals during a High Seismic Activity in Japan in November 2016 T. Asano et al. 10.4236/ojer.2017.64013
30. A statistical study on the AGW modulations in subionospheric VLF/LF propagation data and consideration of the generation mechanism of seismo-ionospheric perturbations Y. Kasahara et al. 10.1541/jae.30.103
31. Solar–terrestrial, ionospheric and natural phenomena studies using the South America VLF network (SAVNET) J. Raulin et al. 10.1016/j.jastp.2010.11.029
32. On precursors to the Italy earthquake M.6.2 using VLF signal of NSY(45.9 kHz) received at Kiel Longwave Monitor K. Kandel et al. 10.1007/s11600-017-0087-9
33. Stable and unstable plasma perturbations in the ionospheric F region, caused by spatial packet of atmospheric gravity waves Y. Rapoport et al. 10.1016/j.pce.2008.09.001
34. Earthquake precursors in the light of peroxy defects theory: Critical review of systematic observations F. Freund et al. 10.1140/epjst/e2020-000243-x
35. Subionospheric VLF/LF monitoring of ionospheric perturbations for the 2004 Mid-Niigata earthquake and their structure and dynamics T. Yamauchi et al. 10.1016/j.jastp.2007.02.002
36. Current Status of Seismo Electromagnetics as Short-term Earthquake Prediction M. HAYAKAWA 10.1541/ieejjournal.130.431
37. Ionospheric perturbations related to the Miyagi-oki earthquake on 16 August 2005, as seen from Japanese VLF/LF subionospheric propagation network F. Muto et al. 10.1016/j.pce.2008.09.010
38. Unusual Animal Behavior Preceding the 2011 Earthquake off the Pacific Coast of Tohoku, Japan: A Way to Predict the Approach of Large Earthquakes H. Yamauchi et al. 10.3390/ani4020131
39. Short-term earthquake prediction: Current status of seismo-electromagnetics S. Uyeda et al. 10.1016/j.tecto.2008.07.019
40. A statistical analysis of seismo-ionospheric TEC anomalies before 63 Mw ≥ 5.0 earthquakes in Turkey during 2003–2016 E. Şentürk & M. Çepni 10.1007/s11600-018-0214-2
41. West Pacific Earthquake Forecasting Using NOAA Electron Bursts With Independent L-Shells and Ground-Based Magnetic Correlations C. Fidani 10.3389/feart.2021.673105
42. On the Relative Effect of Magnitude and Depth of Earthquakes in the Generation of Seismo-Ionospheric Perturbations at Middle Latitudes as Based on the Analysis of Subionospheric Propagation Data of JJY (40 kHz)-Kamchatka Path M. Hayakaw et al. 10.4236/ojer.2013.22003
43. Ionosonde Data Analysis in Relation to the 2016 Central Italian Earthquakes A. Ippolito et al. 10.3390/geosciences10090354
44. Toward a unified solid state theory for pre-earthquake signals F. Freund 10.2478/s11600-009-0066-x
45. Measurement of Doppler shifts of short-distance subionospheric LF transmitter signals and seismic effects S. Asai et al. 10.1029/2010JA016055
46. Preseismic Perturbations and their Inhomogeneity as Computed from Ground‐ and Space‐Based Investigation during the 2016 Fukushima Earthquake S. Biswas et al. 10.1155/2023/7159204
47. Studies of seismo-ionospheric correlations using anomalies in phase of very low frequency signal P. Pal et al. 10.1080/19475705.2016.1161666
48. Probing the lower ionospheric perturbations associated with earthquakes by means of subionospheric VLF/LF propagation M. Hayakawa 10.1007/s11589-011-0823-1
49. Subionospheric VLF perturbations observed at low latitude associated with earthquake from Indonesia region A. Kumar et al. 10.1016/j.jastp.2013.04.011
50. Variation in natural short-period ionospheric noise, and acoustic and gravity waves revealed by the amplitude analysis of a VLF radio signal on the occasion of the Kraljevo earthquake (Mw = 5.4) A. Nina et al. 10.1016/j.scitotenv.2019.136406
51. Transient Effects in Atmosphere and Ionosphere Preceding the 2015 M7.8 and M7.3 Gorkha–Nepal Earthquakes D. Ouzounov et al. 10.3389/feart.2021.757358
52. The wave-like structures of ionospheric perturbation associated with Sumatra earthquake of 26 December 2004, as revealed from VLF observation in Japan of NWC signals T. Horie et al. 10.1016/j.jastp.2007.03.012
53. Detection of Effects of Shallow Major Earthquakes (M ≥ 5.0, depth ≤ 30 km) Occurred in India, Nepal, and China on Ionosphere Using Statistical Approaches R. Singh et al. 10.1134/S0016793224600887
54. Pre-earthquake signals: Underlying physical processes F. Freund 10.1016/j.jseaes.2010.03.009
55. A Six-Year (2014–2020) Statistical Correlation Study of VLF Terminator Time Shift with Earthquakes in Japan D. Politis et al. 10.3390/rs16224162
56. On the correlation between ionospheric perturbations as detected by subionospheric VLF/LF signals and earthquakes as characterized by seismic intensity M. Hayakawa et al. 10.1016/j.jastp.2010.05.009
57. Atmospheric gravity waves as a possible candidate for seismo-ionospheric perturbations M. Hayakawa et al. 10.1541/jae.31.129
58. On the biophysical mechanism of sensing upcoming earthquakes by animals D. Panagopoulos et al. 10.1016/j.scitotenv.2020.136989
59. Possible Pre-Seismic Indications Prior to Strong Earthquakes That Occurred in Southeastern Mediterranean as Observed Simultaneously by Three VLF/LF Stations Installed in Athens (Greece) D. Politis et al. 10.3390/atmos14040673
60. Unusual behavior of Very Low Frequency signal during the earthquake at Honshu/Japan on 11 March, 2011 S. Sasmal et al. 10.1007/s12648-014-0520-8
61. Current status of seismo-electromagnetics for short-term earthquake prediction M. Hayakawa & Y. Hobara 10.1080/19475705.2010.486933
62. Looking for Earthquake Precursors From Space: A Critical Review P. Picozza et al. 10.3389/feart.2021.676775