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NPR reports this morning on the 'quake. At least 19 reported deaths, dozens missing, infrastructure destroyed in the worst earthquake in a century.

Any geologist(earthquake experts) in the brotherhood?
My question is Will the volcano go off

What Caused Thursday's Devastating Earthquake?
A land fault located along the Sarapiquí river that runs between the Poás and Barva volcanoes is the cause of Thursday's 6.2 quake in Cinchona de Sarapiquí, according to an explanation by Eliécer Duarte, an earthquake specialist for the Observatorio Vulcanológico y Sismológico de Costa Rica (Ovsicori).

In a major earthquake the ground may rupture, with ruptures typically occurring along existing fault lines. Duarte explains that the Sarapiquí fault is thousands of years old.

Duarte and a tema of 11 people visited the area of disaster on Friday for a close inspection, noting the movement of the two sides of the fault, one side commencing between Sabana Redonda and Fraijanes, meeting at the epicentre of Thursday's quake, located between Vara Blanca and Cinchona.

The second part is located near the Catarata La Paz heading northeast to San Miguel de Sarapiquí.

The expert explained that the devastation was total in the area of the epicentre.

"The homes at the centre of epicentre were completely destroyed, the majority flattened by the seismic impact", said Duarte.

The inspection also revealed that thousands of hectares of virgin forest were now at the bottom of rivers and their tributaries.

Any geologist(earthquake experts) in the brotherhood?
My question is Will the volcano go off

ScienceDaily (Jan. 12, 2009) — New evidence showing that very large earthquakes can trigger an increase in activity at nearby volcanoes has been uncovered by Oxford University scientists.

An analysis of records in southern Chile has shown that up to four times as many volcanic eruptions occur during the year following very large earthquakes than in other years. This ‘volcanic surge’ can affect volcanoes up to at least 500 km away from an earthquake’s epicentre.

Is there a relationship between large earthquakes (>M 6) that occur along major fault zones and nearby volcanic eruptions?
Sometimes, yes. A few historic large regional earthquakes (>M 6) are considered by scientists to be related to a subsequent eruption or to some type of unrest at a nearby volcano. The exact triggering mechanism for these historic examples is not well understood, but the volcanic activity probably occurs in response to a change in the local pressure surrounding the magma reservoir system as a consequence of (1) severe ground shaking caused by the earthquake; or (2) a change in the "strain" or pressure in the Earth's crust in the region surrounding where the earthquake occurred.

Was there any loss of life in Heredia?

As for as the city itself, I have not heard of any; in the outlying areas of the province (San Pedro de Poas) there was I believe.

9:43 pm Monday and we just had another good shake-not as strong as the other day but lasted almost a minute.