The image shows earthquakes and GPS-displacements together in one picture. The earthquakes have different colours representing how long it's been since they were measured. GPS displacements are shown with black arrows. The circles around the arrows represent uncertainty in the measurements.
The Icelandic Met Office has published two maps showing the (ongoing) mostly horizontal deformation, as evidenced by GPS measurements, in the Bardarbunga area during the past 3 days as well as since the beginning of the crisis. In just 2 weeks, the distance between the DYNC station (western side of the rift) and GSIG (eastern side) has increased by almost 50 cm!
The intrusion has not changed position and is focused on a 15 km long stretch both under and outside the Dyngjujökull glacier NE of Bardarbunga. Earthquake activity also continues under the volcano's caldera with the strongest today so far being a magnitude 5.4 event this morning.
The eruption which lasted only a few hours probably set a record in the ration between public attention (extremely large) versus size (very small).
Most sources seem to agree that it is unlikely to be over at this point although it is entirely possible that the intrusion simply stops.
Bardarbunga volcano update: Eruption just a precursor to a bigger one?
Bardarbunga volcano update: New cauldrons in the Vatnajokull glacier - signs of possible eruption?
Approx 1500 quakes had been registered during yesterday. The tip of the earthquake cluster has migrated further and is now 6-7 km north of Dyngjujökull glacier below ice-free land surface. According to IMO, there are no signs of an impending eruption as the quakes remain mostly at 5-12 km depth.
So far, more than 700 quakes have been recorded in the area including some of the strongest ones so far.
Bárdarbunga volcano update: How likely will the new eruption affect air traffic?
An eruption could occur any time now, and perhaps even has started already. We will post updates and news as they come in on this special page.
Bárdarbunga volcano update: Eruption started?
Seismic stations near the volcano show a marked increase in tremor since about an hour ago. This could indicate that an eruption has started or is about to start, but this needs to be confirmed. The first visual signs of an eruption (assuming it starts under the ice cap) should be meltwater floods.
So far, 164 quakes of magnitudes 1.2-2.8 have been detected today and tremor remains elevated.
The quakes cluster in an area at the NE part of the volcanic system. This is where a new intrusion is likely occurring at the moment, but it is uncertain if it will result in an eruption.