How frequently rann of kutch experience earthquakes?
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Kutch peninsula exhibits enigmatically rapid stress
accumulation/release like the New Madrid Seismic
Zone. Geodynamically, it is a junction of three
structural trends and three tectonothermal episodes
(69–64 Ma). Combination of mobile belts and plume,
evidenced here, favours lithospheric splaying, reacti-
vation, rifting, alkaline complexes; resulting tectonic
network may link Kutch with plate boundaries.
The 1819 and 2001 events have occurred near the
intersection, of such lineaments and accretionary belts,
with its margins. Thus, Plate-boundary forces and
loading (uplifts/sediments) appear to superimpose
here, over relatively weakened lithosphere; and
resulting litho/hydro-spheric instability would contri-
bute to development of the Rann. The crust–mantle
interactions are supported by (i) positive gravity
anomalies, whose obliquity to Kutch rift indicates
later reactivation, (ii) lower uppermantle velocity near
Kutch, and (iii) differential uplift/subsidence. Deep
geophysical probing is necessary to gain greater
understanding of earthquake process.
accumulation/release like the New Madrid Seismic
Zone. Geodynamically, it is a junction of three
structural trends and three tectonothermal episodes
(69–64 Ma). Combination of mobile belts and plume,
evidenced here, favours lithospheric splaying, reacti-
vation, rifting, alkaline complexes; resulting tectonic
network may link Kutch with plate boundaries.
The 1819 and 2001 events have occurred near the
intersection, of such lineaments and accretionary belts,
with its margins. Thus, Plate-boundary forces and
loading (uplifts/sediments) appear to superimpose
here, over relatively weakened lithosphere; and
resulting litho/hydro-spheric instability would contri-
bute to development of the Rann. The crust–mantle
interactions are supported by (i) positive gravity
anomalies, whose obliquity to Kutch rift indicates
later reactivation, (ii) lower uppermantle velocity near
Kutch, and (iii) differential uplift/subsidence. Deep
geophysical probing is necessary to gain greater
understanding of earthquake process.
Answered by
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The Rann of Kutch experiences minor earthquakes every year.
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