SERNAGEOMIN reported that increased seismicity at Laguna del Maule was first registered around 1800 on 30 March. The seismic monitoring stations recorded a swarm of 300 volcano-tectonic earthquakes that occurred in an elongated area in a NW-SE direction approximately 10 km SW of the crater at a depth of up 8 km. These events were associated with rock fracturing processes.
Updated hazard map for Laguna del Maule. Source: SERNAGEOMIN
Yesterday afternoon, SENAPRED (Chilean disaster prevention and response service) and SERNAGEOMIN (Chilean geology and mining service) announced an increase in the alert level at Laguna del Maule from green to yellow (the second lowest of a four colour scale).
mar., 4 avril 2023, 03:14
![Seismic tremor under the Laguna del Maule volcano complex continues (image: SERNAGEOMIN)]()
Seismic tremor under the Laguna del Maule volcano complex continues (image: SERNAGEOMIN)
The Argentine Mining Geological Service (SEGEMAR) and the Argentine Observatory for Volcanic Surveillance (OAVV) raised the Volcanic Alert Level to "Yellow", as an increase of seismic activity has been registered since 30 March.
Read alllun., 3 avril 2023, 23:45
![Satellite image of Laguna del Maule volcano on 3 Apr 2023]()
Satellite image of Laguna del Maule volcano on 3 Apr 2023
mer., 22 déc. 2021, 13:43
SERNAGEOMIN reported that inflation at Laguna del Maule continued in an area SW of the lake during 1-15 December, though deformation had been decreasing since October with a with a maximum rate of 1.88 centimeters per month. Deformation rates during November and December were comparable to those recorded prior to 2019. The number of volcano-tectonic events had also decreased; the largest event was a M 2.3 located 4.1 km ESE from the center of the lake at a depth of 6.1 km.
Read allmer., 24 mars 2021, 20:35
The caldera remains restless with continued seismic activity above background levels and increased gas emissions. No eruption is expected in the near future, but the volcanic system remains under close surveillance.
Read allmer., 17 mars 2021, 06:00
SERNAGEOMIN reported that during 1-15 March the seismic network at Laguna del Maule recorded a total of 123 volcano-tectonic earthquakes. The largest event was a local M 2.4 located 8.2 km WSW of the lake, at a depth of 4.4 km. One tremor event was also recorded.
Read allmer., 17 févr. 2021, 06:00
SERNAGEOMIN reported that during 1-16 February the seismic network at Laguna del Maule recorded a total of 533 volcano-tectonic earthquakes. Two earthquake swarms were recorded during 15-16 February; the largest events were local magnitude 3.1, and were located 9.1 and 8.8 km SW of the lake at a depth of 1.9 km. The epicenters were near the area producing anomalous carbon dioxide emissions.
Read allmer., 4 nov. 2020, 06:00
SERNAGEOMIN reported that 10 low-magnitude volcano-tectonic earthquakes were detected at the Laguna del Maule Volcanic Complex during 16-31 October; seismicity was low in the region where a swarm had occurred in June. Satellite data showed no deformation, surface changes, gas emissions, or thermal anomalies. On 6 November the Alert Level was lowered to Green, the lowest level on a four-color scale.
Read allmer., 23 sept. 2020, 06:00
SERNAGEOMIN reported that during 1-15 September inflation continued to be detected at the Laguna del Maule Volcanic Complex, although at a lower rate of .7 cm per month which is below the 2 cm per month average for this year. Seismicity in the S sector was low in both number and magnitude of events. The Alert Level remained at Yellow, the second lowest color on a four-color scale, as activity remained above baselines.
Read alljeu., 9 juil. 2020, 07:06
![Laguna del Maule volcano covered by snow on 27 June (image: SERNAGEOMIN)]()
Laguna del Maule volcano covered by snow on 27 June (image: SERNAGEOMIN)
On
7 July SERNAGEOMIN reported that the seismicity remains elevated associated with earthquakes located east of the volcano with diameter approx. 5 km near the intersection of two faults near Las Nieblas, and corresponded to elevated levels of carbon dioxide emissions.
Read allmer., 1 juil. 2020, 06:00
SERNAGEOMIN reported that, although the number and magnitude of earthquakes had decreased during 20-30 June, seismicity at the Laguna del Maule Volcanic Complex continued to remain anomalously elevated at east through 7 July. The location of the activity remained within an area about 5 km in diameter, near the intersection of two faults near Las Nieblas, and corresponded to elevated levels of carbon dioxide emissions. The Alert Level remained at Yellow, the second lowest color on a four-color scale; ONEMI recommended restricted access within a radius of 2 km from the emission center.
Read allven., 19 juin 2020, 08:24
During 11-16 Jun SERNAGEOMIN recorded increased seismic activity associated with seismic swarms.
On 15 June recorded volcano-tectonic earthquakes that were located at
10,4 km depth beneath the southwest flank of the volcano.
Read alljeu., 18 juin 2020, 23:00
![Satellite image of Laguna del Maule volcano on 18 Jun 2020]()
Satellite image of Laguna del Maule volcano on 18 Jun 2020
mer., 17 juin 2020, 06:00
SERNAGEOMIN's Volcanological Observatory of the Southern Andes (OVDAS) of Chile and SEGEMAR's Argentine Observatory of Volcanic Surveillance (OAVV) reported anomalous activity at Laguna del Maule Volcanic Complex. Elevated levels of carbon dioxide were detected in an area SW of the caldera lake, along the lower part of the Cabecera de Troncoso River, about 5 km from the lake's shore. Carbon dioxide emissions were measured in February 2020 and notably elevated relative to March 2019 measurements.
Read allmar., 9 déc. 2014, 10:11
![Laguna del Maule caldera (photo: B. Singer / GSA)]()
Laguna del Maule caldera (photo: B. Singer / GSA)
The volcanic field of Laguna del Maule is a potentially dangerous volcano. Scientists have found alarming levels of uplift, suggesting its magma chamber is filling up. What does this mean? In a recent study published at GSA, scientists try to give an answer. [
Read the story]
sam., 20 avril 2013, 07:26
The latest report of Sernageomin indicates that volcanic unrest continues at reduced intensity. GPS measurements show that the central part of the volcanic edifice has been experiencing uplift at a rate of 1.4 cm / month and a horizontal displacement to the west at a rate of 0.64 cm / month.
Read allsam., 9 mars 2013, 08:51
New signs of volcanic unrest - seismic swarms and ground inflation - have been detected at the volcano recently and SERNAGEOMIN raised the alert level of the volcano to yellow.
Read all
