Terremoto moderato mag. 5.6 - Indian Ocean, 114 km a nord ovest da Sinabang, Indonesia, mercoledì, 15 set 2021 03:13 (GMT +7) -
Quake Data | Mappa interattiva | User Reports | Aftershocks | Sismi precendenti nella zona | Sismi Indonesia | Aceh | Sumatra Settentrionale


Terremoto moderato magnitudine 5.6 a 48 km di profondità
14 Sep 20:21 UTC: Primo a segnalare: GFZ dopo 8 minuti.
14 Sep 20:24: Magnitudine ricalcolata da 5.3 a 5.4. Posizione dell'epicentro corretta di 21 km (13 mi) al WSW.
14 Sep 21:10: Profondità ricalcolata da 34.0 a 48.0 km (da 21 a 30 mi). Posizione dell'epicentro corretta di 17 km (10.4 mi) al E.
14 Sep 20:24: Magnitudine ricalcolata da 5.3 a 5.4. Posizione dell'epicentro corretta di 21 km (13 mi) al WSW.
14 Sep 21:10: Profondità ricalcolata da 34.0 a 48.0 km (da 21 a 30 mi). Posizione dell'epicentro corretta di 17 km (10.4 mi) al E.
Update Tue, 14 Sep 2021, 20:27
Significant magnitude 5.4 quake hits 130 km northwest of Sinabang, Indonesia early morning 5.4 quake 15 Sep 3:13 am (GMT +7)
An earthquake of magnitude 5.4 occurred early morning on Wednesday, September 15th, 2021, at 3:13 am local time near Sinabang, Kabupaten Simeulue, Aceh, Indonesia, as reported by Indonesia's Meteorology, Climatology, and Geophysical Agency.
According to preliminary data, the quake was located at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the German Research Centre for Geosciences (GFZ), which listed it as a magnitude 5.4 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 5.4.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Sinabang (pop. 15,000) located 130 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
According to preliminary data, the quake was located at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the German Research Centre for Geosciences (GFZ), which listed it as a magnitude 5.4 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 5.4.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Sinabang (pop. 15,000) located 130 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
Earthquake data
Ora locale a epicentro: mercoledì, 15 set 2021 03:13 (GMT +7)
Magnitudine: 5.6
Prof.: 48.0 km
Epicentro latitudine / longitudine: 2.91°N / 95.45°E

Antipode: 2.91°S / 84.55°W
Vulcano più vicino: Peuet Sague (223 km / 139 mi)
Nearby towns and cities:
114 km ONO da Sinabang (Kabupaten Simeulue) (pop: 15,000) --> Vedi sismi vicini
156 km SSO da Meulaboh (Kabupaten Aceh Barat) (pop: 35,100) --> Vedi sismi vicini
269 km ONO da Singkil (pop: 46,800) --> Vedi sismi vicini
273 km SSO da Reuleuet (pop: 40,400) --> Vedi sismi vicini
293 km S da Banda Aceh (pop: 250,800) --> Vedi sismi vicini
315 km SO da Lhokseumawe (pop: 89,000) --> Vedi sismi vicini
346 km OSO da Binjai (pop: 228,800) --> Vedi sismi vicini
359 km OSO da Sunggal (pop: 157,900) --> Vedi sismi vicini
365 km OSO da Medan (pop: 1,751,000) --> Vedi sismi vicini
387 km OSO da Percut (pop: 311,100) --> Vedi sismi vicini
312 km NO da Nias Island (pop: 756,300) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Overcast Clouds
27.9°C (82 F), humidity: 71%, wind: 2 m/s (3 kts) from S
Fonte dati primaria: BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
Overcast Clouds

Stima dell'energia sismica liberata: 1.6 x 1013 joules (4.4 GWh, equivalent to 3788 tons of TNT o 0.2 atomic bombs!) | about seismic energy
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag. | Prof. | Ubicazione | Fonte |
5.6 | 48 km | Indonesia: Off West Coast of Northern Sumatra | BMKG |
5.3 | 10 km | SIMEULUE, INDONESIA | EMSC |
5.3 | 24 km | Indonesia: Off West Coast of Northern Sumatra | GFZ |
5.3 | 10 km | Indonesia: Near Medan | RENASS |
5.3 | 15 km | 122 Km WNW of Sinabang, Indonesia | USGS |
5.3 | 32 km | Indonesia: Off West Coast of Northern Sumatra | GeoAu |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aftershocks
[More info]
Scosse di assestamento, piu recenti per prima (2 in tutto)
Data e ora![]() | Mag. Prof. | Ubicazione | Dettagli |
25 ott 2021 14:39 30 settimane fa | 4.6 10 km | Indian Ocean, 119 km O da Sinabang, Kabupaten Simeulue, Aceh, Indonesia | Più |
22 set 2021 17:30 34 settimane fa | 4.5 10 km | Indian Ocean, 106 km O da Sinabang, Kabupaten Simeulue, Aceh, Indonesia | Più |
Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!