February 27, 2025 | 09:43 am
TEMPO.CO, Lumajang - Mount Semeru in East Java erupted on Wednesday evening, February 26, 2025. The observed ash column reached approximately 1,100 meters above the peak or around 4,776 meters above sea level.
The eruption of the highest volcano on the island of Java occurred at 17:30 WIB (Western Indonesian Time). The observed ash column was white to gray with moderate intensity leaning towards the north. This eruption was recorded on a seismogram with a maximum amplitude of 22 mm and a duration of approximately 2 minutes 16 seconds.
One hour later, at 18:29, the volcano with a height of 3,676 meters above sea level erupted again with an observed ash column height of approximately 900 meters above the peak (approximately 4576 meters above sea level). The observed ash column was white to gray with thick intensity towards the south and southwest. This eruption was recorded on a seismograph with a maximum amplitude of 23 mm and a duration of 163 seconds.
These two eruption events were reported alternately by the Semeru Volcano Observation Post (PGA) officers, Liswanto and Sigit Rian Alfian. "The activity level of Mount Semeru volcano remains at level II (Alert)," said Liswanto and Rian in their report on Wednesday night, February 26, 2025.
The results of seismological observations in the last 24 hours until early Wednesday morning mentioned several recorded earthquakes, namely 60 times of eruption or explosion earthquakes with amplitudes of 10-23 mm and earthquake durations of 57-191 seconds. The seismogram also recorded 2 times of Avalanche earthquakes with amplitudes of 4-6 mm and earthquake durations of 45-50 seconds.
In addition, there were also 9 times of emission earthquakes with amplitudes of 3-8 mm, earthquake durations of 43-76 seconds. Then 1 time of harmonic earthquake with an amplitude of 3 mm, and an earthquake duration of 212 seconds.
The PGA station located on Mount Sawur, Sumber Wuluh Village, Candipuro Subdistrict, Lumajang also recorded 2 times of Distant Tectonic earthquakes with amplitudes of 8-23 mm, S-P 16-74 seconds, and earthquake durations of 48-120 seconds.
At this level II activity level or Alert, residents are recommended not to carry out any activities in the southeastern sector along Besuk Kobokan, within a distance of 8 km from the peak (eruption center).
Outside this distance, the community is advised not to carry out activities within 500 meters from the river edge (river borders) along Besuk Kobokan because of the potential for being affected by the expansion of hot clouds and lava flows up to a distance of 13 km from the peak.
The Center for Volcanology Mitigation and Geological Disaster also recommends residents not to engage in activities within a 3 km radius from the crater or peak of Mount Semeru due to the danger of rock projectiles (pyroclastic flows).
People are also advised to be cautious of the potential for pyroclastic flows and lava flows along the river/valley originating from the peak of Mount Semeru, especially along Besuk Kobokan, Besuk Bang, Besuk Kembar, and Besuk Sat, as well as the potential for lahar in small rivers that are tributaries of Besuk Kobokan.
Editor’s Choice: Mount Semeru Erupts This Morning, Ash Column Reaches 1 Kilometer High
Click here to get the latest news updates from Tempo on Google News
Mount Semeru Erupts This Morning, Ash Column Reaches 1 Kilometer High
14 hari lalu
Mount Semeru Observation Post has recorded a number of seismic activities. The eruption column observed was 1,000 meters above the summit.
Mount Semeru Erupts, Spews 900 Meters High Ash Column
42 hari lalu
Mount Semeru continues to erupt overnight into Wednesday morning, January 15, at around 7:06 a.m. local time.
KPK Seizes Rp8.1bn in Assets from Gerindra Politician Anwar Sadad in East Java Grant Fund Corruption Case
43 hari lalu
The KPK seized Rp8.1bn worth of assets belonging to Gerindra Party politician Anwar Sadad, a suspect in the corruption case in East Java government.
Cattle Farmers in East Java Urged to Stay Alert for Foot and Mouth Disease
48 hari lalu
Deputy Agriculture Minister Sudaryono asked farmers in East Java to conduct regular vaccinations to safeguard livestock from Foot and Mouth Disease.
Mount Semeru Eruption Continues Wednesday Morning, Volcanic Ash Ejection as Far as 1 Kilometer
50 hari lalu
The eruption of Mount Semeru on the border of Lumajang Regency, East Java, is still ongoing until Wednesday morning, January 8, 2025.
Mount Semeru Closed for Climbers Amid Extreme Weather of January 2025
55 hari lalu
The hiking routes of Mount Semeru were previously reopened on December 23 last year, after a five-year closure.
Mount Semeru Erupts Ten Times, Ash Reaches 1,200 Meters
55 hari lalu
Mount Semeru in East Java experienced a series of ten eruptions on Thursday, January 2, 2025.
Mount Semeru in East Java Erupts, No Visual Eruption Observed
57 hari lalu
East Java volcano, Mount Semeru, erupted on Tuesday night, December 31, 2024, at 20:24 Western Indonesia Time.
Mount Semeru Hiking Route Reopens with Restrictions
57 hari lalu
The official announcement of Mount Semeru's hiking route reopening was made on Dec. 23, 2024, by Minister of Forestry Raja Juli Antoni.
Heavy Rain and Strong Winds, 22 Buildings in Pamekasan, East Java Damaged
27 Desember 2024
At least 22 buildings were damaged by heavy rains accompanied by strong winds in the last two days in Pamekasan, East Java.
