Volcano earthquake report for Monday, 18 May 2026

Quakes detected near: Bardarbunga (13 quakes between mag 0.0-1.0), Barva (1 quake mag 1.7), Black Peak (1 quake mag 1.7), Campi Flegrei (Phlegrean Fields) (8 quakes between mag 0.1-1.3), Chaîne des Puys (2 quakes between mag 1.4-1.4), Churchill (1 quake mag 1.5)
Clear Lake (6 quakes between mag 0.2-1.1), El Chichón (3 quakes between mag 2.3-2.5), Eldey (6 quakes between mag 0.6-1.1), Etna (3 quakes between mag 1.6-3.0), Hofsjökull (4 quakes between mag 0.9-1.9), Iliamna (1 quake mag 1.0), Iliboleng (1 quake mag 2.3), Katla (8 quakes between mag 0.1-1.2), Kilauea (1 quake mag 1.6), Kolumbo (1 quake mag 1.5), La Palma (1 quake mag 2.0), Ljósufjöll (7 quakes between mag 0.0-1.3), Loihi (1 quake mag 2.0), Mahagnao (1 quake mag 1.4), Malindang (1 quake mag 2.3), Maunaloa (1 quake mag 1.2), Mount St. Helens (1 quake mag 1.7), Nasu (1 quake mag 2.5), Okataina (Tarawera) (2 quakes between mag 2.2-2.5), Paco (1 quake mag 2.3), Prestahnukur (13 quakes between mag 0.1-1.6), Reporoa (2 quakes between mag 1.5-1.9), Sorikmarapi (2 quakes between mag 2.1-3.3), Tenerife (9 quakes between mag 1.1-1.5), Torfajökull (1 quake mag 1.1), Turrialba (1 quake mag 1.4), Usulután (1 quake mag 2.2), Whale Island (1 quake mag 2.5), Wide Bay (1 quake mag 1.2) (updated 23h50)

Note: Earthquakes within 20 km from and at depths less than 50 km under active volcanoes are reported. The list is not complete because many volcanoes are not monitored and/or seismic data in high resolution is not available publicly.

Volcanoes with recent earthquakes above magnitude 2 or more than 10 quakes are listed below:

Bardarbunga volcano (Iceland): 13 earthquakes up to magnitude 1.0

Possible earthquake swarm: 13 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 6.10 and 0.00 km.
Earthquake details: (only 5 largest)
1.0 quake 4.0 km ESE of Bárðarbunga May 18, 2026 01:39 am (Universal Time) (3 km E)
0.8 quake Iceland: 3.4 km SE of Bárðarbunga May 18, 2026 03:31 pm (Reykjavik time) (3 km ESE)
0.8 quake 5.5 km E of Bárðarbunga May 18, 2026 04:39 am (Universal Time) (6 km E)
0.6 quake 4.1 km ESE of Bárðarbunga May 18, 2026 06:11 am (Universal Time) (4 km E)
0.5 quake 2.7 km SSE of Bárðarbunga May 18, 2026 12:37 am (Universal Time) (2 km SE)
All earthquakes at Bardarbunga

El Chichón volcano (Southern Mexico): 3 earthquakes up to magnitude 2.5

3 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 3.40 and 3.00 km.
Earthquake details:
2.5 quake Estado de Chiapas, 38 km southwest of Teapa, Estado de Tabasco, Mexico, May 18, 2026 01:51 am (GMT -6) (1 km SSW)
2.4 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, May 18, 2026 04:50 am (GMT -6) (0 km W)
2.3 quake Estado de Chiapas, 36 km southwest of Teapa, Estado de Tabasco, Mexico, May 17, 2026 08:09 pm (GMT -6) (2 km E)
All earthquakes at El Chichón

Etna volcano (Italy): 3 earthquakes up to magnitude 3.0

3 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 10.00 and 6.71 km.
Earthquake details:
Reported seismic-like event (likely no quake): 30 km north of Catania, Catania, Sicily, Italy, May 18, 2026 11:31 pm (GMT +2) (0 km SW)
Reported seismic-like event (likely no quake): 30 km north of Catania, Catania, Sicily, Italy, May 18, 2026 05:41 am (GMT +2) (0 km SW)
1.6 quake 13 km northeast of Adrano, Catania, Sicily, Italy, May 18, 2026 07:28 pm (GMT +2) (4 km SW)
All earthquakes at Etna

Iliboleng volcano (Lesser Sunda Islands): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.00 km depth at 15 km distance SW from the volcano.
Earthquake details:
2.3 quake Kabupaten Flores Timur, 30 km west of Lewoleba, Indonesia, May 19, 2026 04:17 am (GMT +8) (15 km SW)
All earthquakes at Iliboleng

Malindang volcano (Mindanao): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 14 km distance WNW from the volcano.
Earthquake details:
2.3 quake Province of Zamboanga del Norte, 16 km northeast of Mahayag, Philippines, May 18, 2026 11:34 pm (GMT +8) (14 km WNW)
All earthquakes at Malindang

Nasu volcano (Honshu): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.30 km depth at 14 km distance WSW from the volcano.
Earthquake details:
2.5 quake Fukushima, 26 km northwest of Nasushiobara, Tochigi, Japan, May 18, 2026 07:12 pm (GMT +9) (14 km WSW)
All earthquakes at Nasu

Okataina (Tarawera) volcano (New Zealand): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 3 minutes, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 5.00 and 5.00 km.
Earthquake details:
2.5 quake 35 km east of Rotorua, Bay of Plenty, New Zealand, May 18, 2026 09:09 pm (GMT +12) (15 km SE)
2.2 quake 34 km east of Rotorua, Bay of Plenty, New Zealand, May 18, 2026 09:12 pm (GMT +12) (14 km SE)
All earthquakes at Okataina (Tarawera)

Paco volcano (Mindanao): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 2 hours ago. The quake, which might be volcanic in origin, was located at a depth of 17.00 km depth at 12 km distance NE from the volcano.
Earthquake details:
2.3 quake 16 km southeast of Surigao, Province of Surigao del Norte, Caraga, Philippines, May 19, 2026 05:24 am (GMT +8) (12 km NE)
All earthquakes at Paco

Prestahnukur volcano (Iceland): 13 earthquakes up to magnitude 1.6

Possible earthquake swarm: 13 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 1 hour 19 minutes ago. Hypocenter depths ranged between 6.70 and 0.00 km.
Earthquake details: (only 5 largest)
1.6 quake 14.9 km SSE of Húsafell May 18, 2026 10:41 am (Universal Time) (9 km WSW)
1.4 quake Iceland: 14.9 km N of Skjaldbreið May 18, 2026 10:27 pm (Reykjavik time) (12 km SW)
1.3 quake 15.2 km S of Húsafell May 18, 2026 09:56 pm (Universal Time) (13 km WSW)
1.3 quake 15.6 km SSE of Húsafell May 18, 2026 07:51 am (Universal Time) (11 km WSW)
1.2 quake 15.4 km S of Húsafell May 18, 2026 10:31 pm (Universal Time) (14 km WSW)
All earthquakes at Prestahnukur

Sorikmarapi volcano (Sumatra): 2 earthquakes up to magnitude 3.3

2 earthquakes occurred near (under) the volcano during 10 minutes, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 10.00 and 4.00 km.
Earthquake details:
3.3 quake Kabupaten Mandailing Natal, 91 km southeast of Padangsidempuan, Indonesia, May 18, 2026 09:25 pm (GMT +7) (12 km ESE)
2.1 quake Kabupaten Mandailing Natal, 82 km southeast of Padangsidempuan, Indonesia, May 18, 2026 09:14 pm (GMT +7) (12 km ENE)
All earthquakes at Sorikmarapi

Usulután volcano (El Salvador): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 17.00 km depth at 9 km distance S from the volcano.
Earthquake details:
2.2 quake 2.8 km west of Usulutan, Departamento de Usulutan, El Salvador, May 18, 2026 01:46 pm (GMT -6) (9 km S)
All earthquakes at Usulután

Whale Island volcano (New Zealand): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 47.30 km depth at 15 km distance ENE from the volcano.
Earthquake details:
2.5 quake South Pacific Ocean, 22 km northeast of Whakatane, Bay of Plenty, New Zealand, May 18, 2026 02:02 pm (GMT +12) (15 km ENE)
All earthquakes at Whale Island
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/302739/Volcano-earthquake-report-for-Monday-18-May-2026.html