1. Geological Origin: The 52,000-Year Hypervelocity Meteorite Impact
Lonar Crater (19.9756°N, 76.5064°E) is an extraordinary geological wonder situated in the Buldhana district of central-eastern Maharashtra, approximately 140 kilometres east of Chhatrapati Sambhaji Nagar (Aurangabad) and 90 kilometres from Jalna. It is universally recognized as the **only hypervelocity meteorite impact crater on Earth formed in basaltic rock**.
Approximately 52,000 years ago (during the Pleistocene epoch), a colossal extraterrestrial meteorite composed of nickel-iron—measuring an estimated 60 metres across and weighing approximately 2 million tons—struck the Deccan volcanic plateau at a hypervelocity exceeding 90,000 kilometres per hour (25 km/sec).
The catastrophic impact released energy equivalent to a 6-megaton thermonuclear detonation, vaporizing surface rocks and blasting open a near-perfect circular depression measuring **1.8 kilometres (1.1 miles) in diameter** and **150 metres (500 feet) in depth**, surrounded by an elevated ejecta rim of overturned basalt strata.
Descending to Lonar Lake requires negotiating a steep 150-metre vertical stone staircase and rocky trail from Gomukh Temple down to the crater floor. The climb back up can be physically taxing, especially under direct sunlight. Visitors should wear hiking shoes with sturdy grip, carry at least 2 litres of drinking water, and avoid trekking during midday heat.
2. The Saline-Alkaline Lake & Unique Extremophile Ecology
At the bottom of the crater bowl lies **Lonar Lake**, an extraordinary closed-basin water body spanning approximately 1.2 square kilometres. The lake has no natural surface outlets, causing millions of years of mineral concentration that has rendered its water both **hyper-saline** and **hyper-alkaline** (with a pH value regularly exceeding 10.5).
The water is separated into two non-mixing layers: an upper aerobic layer and a lower anaerobic, highly toxic layer containing dissolved sodium carbonate and chloride salts. The lake supports bizarre **extremophile microorganisms**, halo-alkaliphilic bacteria, and purple non-sulfur bacteria capable of surviving in conditions resembling the primordial atmosphere of ancient Earth and Mars.
In June 2020, the lake captured global headlines when its entire surface turned a dramatic pink color over 48 hours, caused by a sudden bloom of salt-loving *Halobacteria* reacting to high salinity and solar radiation.
3. Global Scientific Significance: Maskelynite & NASA Research
Because the Deccan basalt that the meteorite struck closely resembles the basaltic plains of the Moon and Mars, Lonar Crater is studied extensively by international geological organizations including the Geological Survey of India (GSI), NASA, and the Smithsonian Institution.
The immense shock pressures (exceeding 400,000 atmospheres) generated during the impact transformed ordinary plagioclase feldspar in the basalt into **maskelynite**—a rare diaplectic glass formed exclusively by hypervelocity cosmic impacts. Outside of extraterrestrial lunar rocks and meteorites, Lonar is one of the few places on Earth where maskelynite occurs naturally in abundance.
Impactites, shatter cones, and microscopic shock-melted glass spherules are scattered across the ejecta blanket surrounding the crater rim, confirming its cosmic origin over earlier volcanic theories.
4. 8th-Century Hemadpanthi Temples: Daitya Sudan & Gomukh
Lonar is as profound a cultural and archaeological destination as it is a geological marvel. In the center of Lonar town stands the magnificent **Daitya Sudan Temple**, constructed in the 11th century CE during the Yadava dynasty in the Hemadpanthi architectural style.
Dedicated to Lord Vishnu as the slayer of the demon Lavanasura (who according to regional mythology resided inside the crater subterranean cavern), the temple is built in the shape of an asymmetrical star, featuring exquisite black stone relief carvings of Hindu deities, celestial dancers (*apsaras*), and scenes from the Ramayana that rival the famous sculptures of Khajuraho.
At the crater rim stands the **Gomukh Temple**, where a continuous, freshwater spring cascades from a stone cow's mouth, where pilgrims bathe before descending into the crater. Along the saline lake’s edge inside the crater bowl stand the evocative, half-submerged stone ruins of the **Kamalja Devi Temple**, **Shankar Ganesh Temple**, and **Mora Mahadev Temple**.
Lonar Crater is a notified National Geo-heritage Monument and Wildlife Sanctuary. Removing rock specimens (including impactites, spherules, or maskelynite basalt), swimming in the hyper-saline alkaline lake, or littering inside the crater rim is a punishable offense under Indian environmental laws.
5. The Crater Rim Trek & Forest Wildlife Sanctuary
The inner slopes of the crater bowl support a microclimate that is dramatically different from the dry plains above, blanketed by dense tropical dry deciduous forest designated as the **Lonar Wildlife Sanctuary**.
Trekkers can undertake the 6-kilometre **Crater Perimeter Trek** along the rim or descend to the lake floor via ancient stone trails. The forest shelters healthy populations of barking deer, chinkara (Indian gazelle), langurs, monitor lizards, and over 160 species of resident and migratory birds.
During the winter months, migratory birds including shelducks, teals, black-winged stilts, and flamingos visit the saline lake, while peafowl roam freely among the ancient temple ruins.
6. Ancient Epics, Astronomical Lore & Regional Culture
Lonar is mentioned in ancient classical texts including the *Skanda Purana*, the *Padma Purana*, and the *Ain-i-Akbari* of Abul Fazl (1598 CE), which noted that salt and glass-making materials were harvested from the mysterious crater waters.
Local astronomical folklore connects the crater with cosmic alignments, while regional fairs (*yatras*) during Navratri bring colorful processions of pilgrims to the Kamalja Devi Temple on the lake shore.
Local eateries in Lonar town serve authentic spicy Vidarbha cuisine, featuring fiery tarri poha for breakfast, sev bhaji, jowar bhakris, and sweet puran poli prepared for festive occasions.
7. How to Reach Lonar Crater: Road Corridors & Rail Gateways
Lonar is well connected by state highways. From Chhatrapati Sambhaji Nagar / Aurangabad (140 km, approx. 3.5 hours drive), travelers drive east via Jalna and Sindkhed Raja (the historic birthplace of Rajmata Jijabai, mother of Shivaji Maharaj) directly to Lonar.
From Pune (360 km, approx. 7 hours), the route follows the Samruddhi Mahamarg expressway or NH 753F through Ahmednagar and Jalna. From Nagpur (360 km, approx. 6.5 hours), travelers drive west via Mehkar.
The nearest major railway stations are **Jalna Railway Station** (90 km) and **Malkapur** (100 km) on the Central Railway network. Regular MSRTC state transport buses connect Lonar with Aurangabad, Jalna, Mehkar, and Buldhana.
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Frequently Asked Questions
How was Lonar Crater formed and how old is it?
Lonar Crater was formed approximately 52,000 years ago during the Pleistocene epoch by the hypervelocity impact of a 2-million-ton nickel-iron meteorite striking the Deccan volcanic basalt plateau.
What makes Lonar Crater unique in the world?
Lonar is the only known hypervelocity meteorite impact crater on Earth formed in basaltic volcanic rock, making it an invaluable geological analog for studying lunar and Martian craters.
Why is the water in Lonar Lake unusual?
Lonar Lake is both hyper-saline and hyper-alkaline (pH exceeding 10.5) with no natural outlet, supporting rare extremophile microorganisms, and famously turned pink in June 2020 due to Halobacteria blooms.
What is the Daitya Sudan Temple in Lonar?
Daitya Sudan is an 11th-century Yadava-era stone temple dedicated to Lord Vishnu, built in the star-shaped Hemadpanthi style with intricate relief carvings of deities and apsaras rivaling Khajuraho.
How far is Lonar Crater from Aurangabad and Jalna?
Lonar Crater is located 140 km east of Chhatrapati Sambhaji Nagar / Aurangabad (approx. 3.5 hours drive) and 90 km east of Jalna railway station (approx. 2 hours drive).