Romania's volcanic activity

First and foremost, Romania has no active volcanos on its territory. But in spite of this, according to the following article, ignoring volcanic hazards would be inadvisable.

 "The relevance of volcanic hazard in Romania: is there any?" by Alexandru Szakács and Seghedi, Ioan published in the Environmental Engineering and Management Journal in January 2013, http://connection.ebscohost.com/c/articles/86231090/relevance-volcanic-hazard-romania-there-any, states volcanic hazard is ignored in natural hazard studies in Romania precisely because no active volcano is known on its territory. However, it also states that the 2010 eruption of the Eyjafjallajökull volcano in Iceland and its consequences on air traffic safety across Europe and the whole northern hemisphere dramatically demonstrated that volcanic hazard in a certain area, such as a country, is not necessarily related to the presence of active volcanoes in the same territory. Therefore, target-focused approaches to volcanic hazard should also consider remotely located hazard sources with respect the target territory.

Thus, the above mentioned article attempts at making an inventory of potential volcanic hazard sources for the territory of Romania, irrespective of their location inside or outside the country.  According to the article, external volcanic sources implying ash-fall hazard from tephra dispersion following explosive volcanic eruptions include the Central Italian field of active volcanoes (e.g. Campii Flegreii and Vesuvius), the active Aegean volcanic arc, the Eifel region of Central Europe (Germany), and Iceland. And geologic evidence of thick tephra deposition from Campi Flegreii found in southern Romania clearly indicates that such type of volcanic hazard is real.
On the other hand, study of the most recent volcanic activity in Romania shows that the last eruptive event occurred at Ciomadul volcano at the south-eastern end of the Calimani-Gurghiu-Harghita volcanic range (East Carpathians) in a poorly-constrained time interval of 10.7 to 35 Ka in the continuation of a ca. 10.5 Ma.

A number of peculiar features of the Ciomadul volcano and its surroundings strongly suggest that the magma plumbing system of this volcano is not definitely frozen: a well-focused and strongest-in-Romania heat-flow anomaly, crustal and sub-crustal local seismic activity, seismic wave attenuation patterns recorded in seismic tomography images, most intense "post-volcanic activity" including mantle-originated gas emanations. All these symptoms allow one to consider that future eruptions from this volcano cannot be ruled out. The article concludes that more geophysical studies are needed to obtain more basic information on the current status of the magma-generating and plumbing systems of Ciomadul volcano, which is crucial from the viewpoint of volcanic hazard assessment.

Since Romania has no relatively recent volcanic activity and as mentioned, to date, it has no active volcanos on its territory, very little, if nothing is done to warn people about volcanic eruptions.

However, what is interesting in Romania is the presence of the so-called "muddy volcanos"located in the Buzau county, near the village of Berca. Not as spectacular as real volcanos, but still an interesting phenomena. These so-called volcanoes are active all the time, which means gas is pushing mud to the surface in a continuous way, but at low speeds.