Network Pulse

On June 9, 2026, a M5.1 earthquake occurred approximately 6 km SSW of Sibagat, Philippines. This event is located within a radius of 350km from several submarine cable landing points in the region.

• The PLDT Domestic Fiber Optic Network (DFON) and Submarine Cable in the Philippines (SCiP), both landing at Butuan City, are not actively measured but are close to the epicenter.
• The Converge Domestic Submarine Cable Network (CDSCN), Philippine Domestic Submarine Cable Network (PDSCN), Apricot, Asia Connect Cable-1 (ACC-1), Bifrost, and SEA-US cables all land within 188km of the earthquake's location. Our latency measurements for these cables show that while there are currently no reported anomalies, some cables like ACC-1 have experienced average delays of around 139ms with 169 checks over seven days.

On June 9, 2026, a M5.1 earthquake occurred approximately 10 km north of Sarangani, Philippines. Our monitoring currently shows no active alerts on the network but has identified one latency anomaly.

The submarine cables in the affected region include Apricot, ACC-1, Bifrost, and SEA-US, all landing within 350km of the earthquake's epicenter at Davao, Philippines. Latency measurements for these cables show average delays of approximately 148ms to 202ms with varying check frequencies over a seven-day period. No significant damage has been reported or detected as of now.

A magnitude 5.3 earthquake occurred on June 8, 2026, approximately 19 km SSW of Lumatil, Philippines.

Our monitoring indicates that four submarine cables with landing points within 350km of the epicenter are experiencing latency anomalies: Apricot (Davao), Asia Connect Cable-1 (ACC-1) (Davao), Bifrost (Davao), and SEA-US (Davao). The average latencies for these cables have increased, with measured values ranging from 143ms to 201ms over a seven-day period. No active alerts are currently in place, but we continue to monitor the situation closely.

On June 8, 2026, a magnitude 5.5 earthquake struck approximately 12 km southwest of Balangonan, Philippines. Our network monitoring has identified two latency anomalies and one active alert on our submarine cable systems.

The earthquakes affected several cables with landing points within 350 kilometers of the epicenter. Specifically, the Apricot, Asia Connect Cable-1 (ACC-1), Bifrost, and SEA-US cables, all landing at Davao, Philippines, have shown latency increases: average delays of approximately 143ms, 169ms, 201ms, and 195ms respectively over the past week. The Palapa Ring Middle cable, which lands in Tahuna, Indonesia, is not currently being actively monitored for this event. Similarly, the PLDT Domestic Fiber Optic Network (DFON) and Converge Domestic Submarine Cable Network (CDSCN), both landing at Cagayan de Oro, Philippines, as well as the Philippine Domestic Submarine Cable Network (PDSCN), are also not being actively measured.

On June 8, 2026, a M7.8 earthquake struck approximately 26 km southwest of Kablalan, Philippines. Our monitoring currently indicates no active alerts on our network but has identified two latency anomalies.

The affected region includes submarine cables with landing points within 350km of the epicenter: Apricot, ACC-1, Bifrost, and SEA-US. Latency measurements show that these cables experienced average delays of around 147ms to 201ms over a period of seven days. No active damage has been reported or detected on any of these cables at this time.

On June 7, 2026, a M5.2 earthquake struck approximately 7 km west of Prokópi, Greece. Our monitoring currently indicates no active alerts on the network but has identified one latency anomaly.

The affected region includes several submarine cables with landing points within 350km of the earthquake's epicenter. Specifically, the EMC West-1 cable, which lands in Athens, Greece, shows an average latency increase of approximately 123ms over a seven-day period, based on 138 measurements. Other cables such as MedNautilus Submarine System and Medusa Submarine Cable System also show increased latencies, with averages of 142ms and 143ms respectively, though they are not actively measured for continuous monitoring. No damage or significant issues have been reported beyond these latency changes.

A magnitude 4.5 earthquake struck approximately 30 km north-northeast of Nasinu, Fiji, on June 6, 2026.

Our monitoring indicates that five submarine cables with landing points within 350 km of the epicenter are being monitored for potential impacts: SCCN (measuring an average latency of ~169 ms with 5 checks per week), Southern Cross NEXT (with an average latency of ~163 ms and 11 checks per week). The other cables in the vicinity - APX East, Bulikula, Gondwana-2/Picot-2, Interchange Cable Network 1 (ICN1), Tabua, and Tonga Cable - are not currently being actively measured. As of now, there are no active alerts on our network, but latency anomalies have been detected for SCCN and Southern Cross NEXT.

On June 5, 2026, a M5.3 earthquake occurred 7 km NNW of Manito, Philippines. The event is located approximately 13 to 95 kilometers from several submarine cable landing points in the region.

• The PLDT Domestic Fiber Optic Network (DFON), Philippine Domestic Submarine Cable Network (PDSCN), Sorsogon-Samar Submarine Fiber Optical Interconnection Project (SSSFOIP), and Submarine Cable in the Philippines (SCiP) have landing points within 350 kilometers of the earthquake. However, these cables are not actively measured by our system.
• The Converge Domestic Submarine Cable Network (CDSCN), ASE/Cahaya Malaysia, and JUPITER cables are also within this distance. Our latency measurements show that the ASE/Cahaya Malaysia cable has experienced an average latency of 75 milliseconds over seven days with 17 checks, while the JUPITER cable shows an average latency of 240 milliseconds over seven days with six checks.