Blue sky at midnight - earthquake lightning

Neil WHITEHEAD; Ülkü ULUSOY

Makale detayları

Blue sky at midnight - earthquake lightning

Yazarlar:

Neil WHITEHEAD | Ülkü ULUSOY

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Earth Sciences 2019 Vol.28 Issue 1, pp.171-186

Belge Tipi:

Makale

Yayın Tarihi:

1/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000731123

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985

Özet:

 


 
                         Earthquake light, emerging from the ground as flashes at night (neglecting other more minor forms), usually has a white
hemispherical center and blue outer part. The blue resembles daytime blue sky. Its existence is increasingly verified, with about 80 videos
on the web to mid-2017. However, the light must be differentiated from power-grid faults, so sound/color/form/length criteria were
developed in this paper through examination of many videos. Light should be coseismic (i.e. when the S-waves arrive), hemispherical,
not during a storm, less than 1 s long, without fire or smoke, and without many rapid color changes. Warnings about camera artifacts
are included. This light accompanied two recent earthquakes: M7.8 November 14, 2016, New Zealand, and M8.1 September 8, 2017,
Mexico. Definite green flash earthquake light has only been caught once on video and it is shown that others are sometimes electrical
overload of mercury vapor lamps, or difficulty with classifying pale turquoise flashes that are only slightly more green than blue. Three
separate frames from videos (NZ, Turkey, and Ecuador) have views actually within the blue light. These data exemplify the Freund
principle of positive charge production from quartz by high stress-rate, then charge separation and expulsion to the ground surface and
creation of light, but the hypotheses of quartz piezoelectricity or voltages from fracture mechanisms are not accepted.

                    

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Makale detayları

Blue sky at midnight - earthquake lightning

Yazarlar: Neil WHITEHEAD | Ülkü ULUSOY

Yayıncı: TUBITAK

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Earth Sciences 2019 Vol.28 Issue 1, pp.171-186

Belge Tipi: Makale

Yayın Tarihi: 1/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000731123

Sıklık: İki Aylık

eISSN: 1303-619X

pISSN: 1300-0985

Sayı

Yazarlar:

Neil WHITEHEAD | Ülkü ULUSOY

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Earth Sciences 2019 Vol.28 Issue 1, pp.171-186

Belge Tipi:

Makale

Yayın Tarihi:

1/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000731123

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985