Earthquakes Today Feature Magnitude 5.2 Quake Near Neiafu in Tonga
Multiple earthquakes struck various locations worldwide this week, including a magnitude-5.2 event near Neiafu in Tonga, two moderate quakes in western Greece, a magnitude-4.0 tremor in Colombia's Chocó region amid ongoing seismic activity, and a minor magnitude-2.8 quake in California, while Indonesia continues long-term health response efforts following earlier quakes in East Nusa Tenggara. Earthquakes today continue to draw attention from monitoring agencies tracking these events across different regions.
Recent Global Earthquake Activity
A magnitude-2.8 earthquake was recorded at a depth of 5.0 km, 16 km WSW of Johannesburg, California. [1] A magnitude-5.2 earthquake occurred at a depth of 35.0 km, 22 km SSE of Neiafu, Tonga. [2] Two earthquakes of magnitudes 4.5 and 4.4 struck Etoliko in western Greece on Tuesday morning. [3] A magnitude-4.0 earthquake struck at a depth of 40 km near Medio San Juan in Colombia's Chocó department on September 7, part of more than 1,300 aftershocks recorded since a magnitude-7.4 quake on August 10. [5] Indonesia's Ministry of Health has sent a second batch of 160 reserve health workers to provide psychosocial and mental health support in four districts of East Nusa Tenggara affected by prior earthquakes. [4] These reports from multiple monitoring sources highlight the spread of seismic events without indicating any single connected cause.
Tonga Magnitude-5.2 Quake
A magnitude 5.2 earthquake struck 22 km SSE of Neiafu, Tonga at a depth of 35 km. — Source: gdelt A magnitude-5.2 earthquake occurred at a depth of 35.0 km, 22 km SSE of Neiafu, Tonga. [2] The event was recorded by the USGS with precise coordinates placing the epicenter 22 km south-southeast of the town. [2] Depth measurements reached exactly 35.0 km according to the available data. [2] No additional impacts or follow-up details appear in the source report for this specific tremor. [2] The magnitude remained fixed at 5.2 in the official bulletin. [2]
Twin Quakes Hit Western Greece
Two earthquakes of magnitudes 4.5 and 4.4 struck Etoliko in western Greece on Tuesday morning. [3] The first registered at 4.5 while the second measured 4.4 according to local reporting. [3] Both events occurred in the Etoliko area of western Greece. [3] Tuesday morning timing marked the sequence as noted in the coverage. [3] No further magnitudes or depths were specified beyond these two values. [3]
Ongoing Seismic Sequence in Colombia
A magnitude-4.0 earthquake struck at a depth of 40 km near Medio San Juan in Colombia's Chocó department on September 7, part of more than 1,300 aftershocks recorded since a magnitude-7.4 quake on August 10. [5] The Servicio Geológico Colombiano confirmed the epicenter in Medio San Juan at coordinates 4.58 latitude and -76.72 longitude. [5] The September 7 event took place at 9:01 p.m. local time with a depth of 40 km. [5] This tremor fits within the sequence that began after the magnitude-7.4 quake on August 10 at 7:34 a.m. with its own depth of 103 km near San José del Palmar. [5] More than 1,300 aftershocks and swarm events were logged between the August 10 mainshock and August 31, with magnitudes ranging from 0.6 to 4.8 and depths up to 120 km. [5] The Servicio Geológico Colombiano continues to monitor the ongoing activity in the department. [5]
Indonesia's Continued Health Response in NTT
Indonesia's Ministry of Health has sent a second batch of 160 reserve health workers to provide psychosocial and mental health support in four districts of East Nusa Tenggara affected by prior earthquakes. [4] The personnel departed from Terminal 2 at Soekarno-Hatta International Airport bound for Ngada, Manggarai, Manggarai Barat, and Manggarai Timur. [4] Acting head of the ministry's Health Crisis Center Sumarjaya stated that the approach focuses more on psychosocial support and mental health services for communities in Flores. [4] Two field hospitals remain operational in Ruteng and Ngada. [4] The ministry had previously sent 206 health workers to support primary medical care across NTT. [4] TCK teams operate on 14-day shifts aligned with WHO standards, and deployments match the emergency response timeline set by the NTT Provincial Government through Sept. 12, 2026. [4] General practitioner Dr. Shaldy Syifa Azzahri noted preparations included gathering medical supplies while maintaining readiness. [4] Another team member, Dr. Rayhendra Hanif, cited his experience with the 2009 Padang earthquake as motivation for joining the effort. [4]
Minor California Tremor
A magnitude-2.8 earthquake was recorded at a depth of 5.0 km, 16 km WSW of Johannesburg, California. [1] The USGS report listed the exact magnitude and depth without additional context on effects. [1] The location placed the event 16 km west-southwest of Johannesburg. [1] No further details on timing or impacts were provided in the source. [1]
What to watch next includes continued monitoring by the Servicio Geológico Colombiano of the Chocó sequence and the ongoing rotations of Indonesian health teams through the September 12, 2026 timeline in East Nusa Tenggara.
