Contact | RSS | EN | DE | EL | ES | FR | IT | RU

Makian volcano (Kie Besi) (Molucca Sea, Indonesia): increase in seismic activity, alert level raised

Tue, 8 Mar 2016, 17:21
17:21 PM | BY: T
Seismic activity of Kie Besi volcano (Makian) over the past weeks (VSI)
Seismic activity of Kie Besi volcano (Makian) over the past weeks (VSI)
The alert level of Makian Island's Kie Besi volcano was raised from 1 (normal) to 2 ("waspada" = watch) yesterday, as an increase in seismic activity has been detected recently under the volcano.
The stratovolcano, which forms a small island south of Ternate (and is in the center line of tomorrow's Solar Eclipse, where one of our groups is currently stationed...), is one of the regions most active (and dangerous) volcanoes with a number of strong explosive eruptions in historic times, last in 1988.
Already on 2 June 2009, a similar increase in internal activity had triggered a raise in alert level, but unrest declined soon after again and the volcano was placed back to normal again on 16 July, as no further changes in activity had been detected.

The current, most recent phase of unrest began apparently last year. A series of deep earthquakes could be felt in the region in November. Since January, the observatory noted an increase in the number and size of shallow volcanic earthquakes. Weakly felt quakes occurred on 12 January, as well as on 18 and 24 February. Long-period quakes and volcanic tremor (regular vibrations), both related to internal fluid movements also started to occur since the end of past February.
The volcano's seismic activity further increased during the past week and now volcanic tremor has been a weak, but constant signal since 7 March which is why the volcano's alert level was now raised.
So far, no signs of changes in the volcano's visible (surface) activity have been noted, in particular concerning the relatively weak fumarolic activity in the summit crater. However, volcanologists interpret the increased seismic activity and its characteristics as likely created by a magma intrusion from depth, and that fluids, possibly magma, have been moving closer to the surface, causing an increase in internal pressure, and, hence the risk of sudden explosions.
For now, no evacuations are recommended, but the local population is advised to stay alert of possible tremors that can be felt. It is apparently not expected that an eruption might occur in the near future, but increased vigilance is in place as things can change quickly at active volcanoes. Past eruptions of Makian have often produced pyroclastic flows and significant ballistic ejections that pose great risk to nearby areas, especially within a radius of 2 km.
For the time being, the local population on Makian island around G. Kie Besi volcano and visitors / tourists are advised not to climb the crater and remain outside a radius of 1.5 km from gunung Kie Besi's summit crater.

Previous news

Wed, 2 Mar 2016, 06:00

Makian volcano (Halmahera, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 2 March-8 March 2016 (New Activity / Unrest)

PVMBG reported that seismicity at Makian increased at the beginning of January and was characterized by deep volcanic earthquakes, low-frequency events, and tremor. Tremor amplitude increased at the beginning of March. Gas emissions did not change; weak solfatara emissions continued to rise from the crater floor. ... Read all
Wed, 15 Jul 2009, 06:00

Makian volcano (Halmahera, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 15 July-21 July 2009 (Continuing Activity)

CVGHM reported that on 16 July the Alert Level for Makian was lowered from 2 to 1 (on a scale of 1-4) because no visual changes or increased seismicity were noted. Residents and tourists were not permitted to climb Makian. ... Read all
Show more
Makian volcano
Stratovolcano 1357 m / 4,452 ft
Halmahera (Indonesia), 0.32°N / 127.4°E
Current status: normal or dormant (1 out of 5) Makian volcano eruptions:
1550, 1646, 1660(?), 1760-61, 1854(?), 1860(?), 1861-62, 1863, 1864, 1890, 1988
Typical eruption style
Explosive eruptions. Infrequent but violent explosions with large amounts of ash and pyroclastic flows generated.
Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version

More on VolcanoDiscovery

Support us - Help us upgrade our services!

We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Design upgrade
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.
Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.
Volcanoes & Earthquakes
VolcanoDiscovery Home
Volcanoes | Earthquakes | Photos | Volcano News | App
Adventure & Study Travel
Tours to Volcanoes and Volcanic Areas: walking tours, photo tours, study tours
Tours & Dates | FAQ | About us
Get our newsletter!
Company info
Contact | Legal info | Terms & conditions
Follow us
Follow us on facebook Follow us on Instagram Follow us on Twitter Visit our Youtube channel
EN | DE | EL | ES | FR | IT | RU
VolcanoDiscovery GmbH, Germany, Reg. nr.: HRB 103744, EU Tax Id: DE 310 395 322 owned and created by
Dr. Tom Pfeiffer, volcanologist, volcano photographer, tour organizer member of
IAVCEI
Volcanological Society
Ecotourism Greece
Insured by R+V
VolcanoDiscovery © 2004- All Rights Reserved | Privacy - cookie settings