First, most volcanic spots are known for preserving unique, indigenous grape varieties that offer different flavors than do such ubiquitous international varietals as chardonnay and cabernet. Little can grow in layers of volcanic ash and pumice, including the phylloxera pest that destroyed most of Europe’s vineyards in the 19th century. In places like the Canary Islands, that volcanic soil saved local grapes such as listan negro, which has a delicious wildness to its taste.

Add in the wine zeitgeist, with drinkers craving more than soft, fruity reds and whites. “Minerality and volcanic wines walk hand-in-hand,” says Szabo.

Wines from the several types of volcanic soils—lava, pumice, ash, basalt, and more—can vary widely, but most share complex aromas, mouthwatering high acidity, and salty, savory, earthy flavors. The porosity of these soils stores more water, which contributes to the wines’ characteristic freshness and exuberance.

But the image of volcanoes may be the secret reason these wines are getting buzz. As Eric Guido, director of wine and marketing at Morrell and Co., emailed me: “Just think of the romance that surrounds wines grown in soils born of molten earth and ash!”

Eight Places to Look for Volcanic Wines
Santorini, GreeceThis picture-perfect tourist haven in the Aegean sea produces some of the best examples of volcanic wines. Vines are planted in fields of pumice, ash, and volcanic rock. Bottle to try:  2016 Hatzidakis Assyrtiko ($24) is intense, citrus-y, and briny, with deep minerality; this is one of Santorini’s top whites, and it’s made from organically grown grapes.

Mount Etna, Sicily Along with Santorini, this region in Sicily, with the highest active volcano in Europe, ignited the interest in volcanic wines. Its soils range from basalt pebbles and pumice to black ash.  Bottle to try:  2014 Biondi Etna Rosso Outis ($34) is a bright and elegant blend of nerello mascalese and nerello cappuccio from the southeast slopes of the volcano; it’s almost Burgundian in character.

Somlo, HungaryThough the country’s volcanoes are no longer active, violent eruptions millennia ago left behind spectacular basalt deposits in several parts of the country. Somlo, a single volcanic butte known as the “forgotten hat of God,” produces powerful, distinctive whites. Bottle to try:  2015 Somloi Apatsagi Pince Juhfark Somlo($29) is rich, smoky, and savory and made from an almost extinct grape variety, juhfark, which is exclusive to Somlo.

The Azores, Portugal This archipelago of volcanic islands lies in the Atlantic Ocean about 1,000 miles west of Lisbon. Most vineyards are on Pico, an island on which vines grow in small corrals made of black basalt stones. Bottle to try: 2015 Azores Wine Company Arinto dos Açores ($58) is made from arinto grapes. A fresh, salty, crisp white that brims with intense acidity, purity, depth, and power, it’s ideal with grilled fish. 

The Canary Islands, Spain This archipelago lies 60 miles off Morocco but belongs to Spain. Tenerife’s 12,198-foot Mount Teide is the highest volcano. Some vines are planted in lava cracks, others in mini-craters in black basalt. Bottle to try:  2016 Envinate Benje Tinto ($28) is a cult red from old listan prieto vines grown at 3,000 feet on Tenerife. Now on New York’s hippest lists, it shows fresh notes of vivid red fruit, spicy pepper, floral-edged aromas, and a deep, deep, earthy quality.

Campania, Italy This southern Italian region is home to one of the most dangerous volcanoes in the world: Mount Vesuvius, which last erupted in 1944. Its ash and pumice form the soils in Irpinia, 30 miles away. Bottle to try:  2009 Mastroberardino Naturalis Historia Taurasi ($90) comes from a top wine estate making several fine reds from aglianico grapes; this dark, intense, mineral-inflected example from 40-year old vines is concentrated and deep.