Varablanca is a district of the Heredia canton, in the Heredia province of Costa Rica. The Varablanca head city is located between Poas Volcano and Barva Volcano in the Heredia Province of Costa Rica. It is an important cross-road location for all major traffic connecting the northern parts of Costa Rica, especially the Sarapiqui River delta area with th…Varablanca is a district of the Heredia canton, in the Heredia province of Costa Rica. The Varablanca head city is located between Poas Volcano and Barva Volcano in the Heredia Province of Costa Rica. It is an important cross-road location for all major traffic connecting the northern parts of Costa Rica, especially the Sarapiqui River delta area with the major population area of the San Jose Central Valley. On January 8, 2009, it was struck by a powerful 6.1 magnitude earthquake known as the Cinchona earthquake.