Thiruvananthapuram, Oct 31: The "explosion-like" sounds, accompanied by tremors, that were heard in the Anakkallu area of Malappuram district a day ago, were apparently caused due to friction and cracking of rocks close to the surface of the earth, the Kerala State Disaster Management Authority (KSDMA) said on Thursday.

According to a joint statement issued by the KSDMA and the District Disaster Management Authority in Malappuram, District Geologist, Ground Water Department Geologist and District Hazard Analyst conducted a site inspection where the noise and vibrations occurred on October 17, 18 and 29.

Based on the inspection, the KSDMA concluded the noise and vibrations were "caused by the friction and cracking of rocks close to the surface of the earth" -- a phenomena which has been reported in many parts of Kerala before -- and were generally not dangerous.

This phenomenon is often caused by subtle natural changes in the earth. They are also caused by the displacement of rocks due to groundwater utilisation and when air contained in small cavities inside the earth escapes through tube wells, KSDMA said in the statement.

It said a decision has been taken to subject the site to a geophysical survey to understand the structure of the area more accurately and for that the Kozhikode NIT has been contacted by the KSDMA.

Regarding the damage suffered by some buildings due to the vibrations, it said that the same was due to their "age and structural weakness".

The authority said that depending on the extent and pattern of the cracks suffered by the buildings, the damage can be repaired by an engineer for continued use.

Nearly 300 people were moved to safety after the "explosion-like" sounds accompanied by tremors were heard by them in Anakkallu area in Malappuram district on Tuesday night.

The first sound was reportedly heard at 9.15 pm on Tuesday, followed by two more at 10.15 pm and 10.45 pm along with mild tremors, and reportedly within a 2-km radius, causing panic among the local residents.

Local residents had said they heard alarming sounds similar to those heard from granite quarries at their place repeatedly accompanied by continuing tremors.

Cracks were also found to have developed in some houses in the area, they had said.

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Chennai: Journalist and political commentator Sujit Nair has expressed concern over speculation that the Dravida Munnetra Kazhagam and the All India Anna Dravida Munnetra Kazhagam could explore a post-poll understanding to prevent Vijay-led Tamilaga Vettri Kazhagam from forming the government in Tamil Nadu.

In a social media post, Sujit Nair said the election verdict in Tamil Nadu reflected a clear public demand for political change and argued that the mandate should be respected irrespective of political preferences.

Referring to reports and political discussions surrounding a possible understanding between the DMK and AIADMK, he said he hoped such developments remained only speculative conversations and did not turn into reality.

Nair stated that if such an alliance were to take shape, it would raise serious questions about ideological politics in the country. He said TVK had emerged through a democratic electoral process and that the legitimacy to govern in a parliamentary democracy comes from the people’s verdict.

According to him, attempts to prevent an electoral winner from forming the government through unexpected political arrangements may be constitutionally valid, but many people could view them as politically opportunistic.

He further said that such a move could particularly affect the political image of the DMK, which has historically projected itself around ideology, social justice and opposition politics. Nair said that in ideological terms, the DMK appeared closer to TVK than to the AIADMK, and joining hands with its long-time political rival only to remain in power could weaken its broader political narrative.

He added that the same questions would apply to the AIADMK as well, as the party had spent decades positioning itself against the DMK and such an arrangement could create discomfort among its cadre and supporters.

Drawing a comparison with Maharashtra politics in 2019, Nair said he had expressed similar views when the Shiv Sena formed an alliance with the Indian National Congress and the Nationalist Congress Party after the Assembly elections.

He said post-poll alliances between long-standing political rivals often create a public perception that ideology and electoral mandates become secondary when political power equations come into play.

Nair also said such developments increase public cynicism towards politics and reinforce the belief among voters that ideology is often sidelined after elections.

He maintained that the Tamil Nadu verdict was emphatic and said respecting both the spirit and substance of the mandate was important for the credibility of democratic politics.