Türkiye is no stranger to earthquakes. In February 2023, a devastating 7.8-magnitude earthquake struck near the Türkiye-Syria border, followed by another nearly as strong.
Six Turkish universities have launched a real-time geodetic monitoring network to track earthquake-related ground deformation across Thrace and the Southern Marmara region, reports Hürriyet Daily News.
TR-TRAK-GNSS will monitor seismic and tectonic activity using 28 GNSS stations. The system is designed to evolve into a major scientific and early-warning infrastructure capable of detecting tectonic deformation in real time and identifying structural movements in buildings across cities and university campuses.
Once fully deployed, the network will form a continuous monitoring ring encircling Thrace and Southern Marmara.
The project will be financed through each participating university’s Scientific Research Projects resources, with institutions covering the installation costs of GNSS stations within their own areas of responsibility.
Three U.S. service members were killed and dozens wounded during a UAV attack on U.S. forces stationed in northeastern Jordan near the Syrian border, President Joe Biden and U.S. officials said on January 28.
Biden blamed Iran-backed groups for the attack, the first deadly strike against U.S. forces since the Israel-Hamas war erupted in October 2023 and sent shock waves throughout the Middle East.
“While we are still gathering the facts of this attack, we know it was carried out by radical Iran-backed militant groups operating in Syria and Iraq,” Biden said in a statement.
At least 34 personnel were being evaluated for possible traumatic brain injury, a U.S. official told Reuters, speaking on the condition of anonymity. Two officials said some wounded U.S. forces were medically evacuated from the base for further treatment.
The Islamic Resistance in Iraq – an umbrella organization of Iran-backed militant groups — claimed attacks on three bases, including one on the Jordan-Syria border.
The attack is a major escalation in the already tense situation in the Middle East, where war broke out in Gaza after the Palestinian Islamist group Hamas attacked Israel on October 7, killing 1,200 people. Israel’s subsequent assault on Gaza has killed more than 26,000 Palestinians as of January 2024, according to the local health ministry.
Since then, U.S. forces have come under attack more than 150 times by Iran-backed groups in Iraq and Syria. U.S. warships have also been fired at by Iran-backed Houthi forces in Yemen, who are regularly attacking commercial ships passing through Red Sea waters off Yemen’s coast.
While the United States has maintained an official line that Washington is not at war in the region, it has been retaliating against the Iran-backed groups in Iraq and Syria and carrying out strikes against Yemen’s Houthi military capabilities.
Referring to the fallen soldiers, in his statement released by the White House Biden said: “We will carry on their commitment to fight terrorism. And have no doubt — we will hold all those responsible to account at a time and in a manner of our choosing.”
Just as I was beginning to write this article, war broke out between Israel and terrorist forces in Gaza. It would seem that the rockets used by Gaza were aimed rather than carrying on-board guidance, while Israeli airforce bomb/rocket attacks have been carried out with some degree of precision. Nevertheless, jamming in Israel may still be relevant to the ongoing conflict and any on-going commercial aircraft activity. However, it seems from the diagram of jamming below, that the Gaza strip is virtually interference free.
One of the things you can be sure of in the Ukraine-Russia war is that one side or the other is jamming the other’s communications and sat-nav guidance systems. An apparent consequence is that there is likely some “spill-over” to adjacent areas. For Israel, however, it looks like it’s more directed jamming rather than incidental.
Israel GPS jamming. (Image: GPS Jam.org)
In this environment of intentional GPS jamming, it’s not surprising that Israel has produced a leading anti-jam technology company, called InfiniDome, in Caesarea (between Haifa and Tel-Aviv). According to co-founder Omer Sharar, the company has been working to defend GPS signals for more than seven years and has also seen the rise of devices to jam the GPS L1 frequency that anyone can buy online for $100.
Just as Ukraine is throwing explosive cardboard UAVs with little cost at Russian occupying forces, a few carefully placed low-cost jammers could inflict serious damage on a country’s navigation capabilities.
However, a 2019 presentation by Todd Humphreys identified the source of interference and spoofing at that time, a Russian high-power jammer located at a Russian base in Syria.
Humphreys used instrumentation on the International Space Station (ISS) to gather data on the directed interference but concluded that the jamming in Israel could be a consequence of Russia’s efforts to protect its troops in Syria from UAV attacks. The Russian Khmeimim Air Base is on the Mediterranean coast and attacks are thought to come from rebels within Syria.
With the current GPS jamming out of Syria, most commercial aircraft traffic flying into Ben Gurion International Airport is significantly affected as flights cross from over the coast from the Mediterranean. Longer flight tracks deeper southeast into Israel are necessary, probably relying on VOR and DME ground station waypoints before turning back northwest to capture the instrument landing system (ILS) into the airport. This costs time and fuel and causes aircraft to overfly settlements where noise can be a real problem.
Most readily available jammer electronics only output interference disrupting GPS L1, which is most commonly installed for vehicle tracking and UAV guidance. InfiniDome has successfully protected trucking, UAV operations and others in Israel and around the world with its Infinidome GPSdome-1 and GPSdome-2 anti-jam products.
Two antennas 10 cm to 25 cm apart enable GPSDome-1 algorithms to detect and null out a GPS L1 jammer. GPSDome-2 accommodates up to four antennas and can null up to three directional signals on both GPS L1 and L2 or GPS L1 and GLONASS L1.
InfiniDome is currently working with an aerospace company to integrate its anti-jam technology with airborne inertial/GPS and qualify the integrated system for use in civil aviation, with the objective of maintaining max 3% drift when fully jammed. This will introduce certified anti-jam technology into civil aviation use — something that will provide some jamming protection, which airlines desperately need going forward. In addition, other high-end UAV manufacturers are potential customers for this new system.
While the ongoing conflict and the devastating loss of life is forefront as each day of the war passes, these anti-jam solutions may ultimately help solve signal degradation problems. While there is going to be a significant impact on commercial airline travel to and from Israel while hostilities continue, we can maybe see the way to a possible long-term solution for the intense jamming from which the region has suffered for many years.
Israel has declared war on the Palestinian militant group Hamas after it carried out an unprecedented attack by air, sea and land on October 7, 2023.
The large-scale surprise attack has left more than 1,200 dead in Israel, said Israel Defense Forces spokesperson Lt. Col. Jonathan Conricus in an update on October 11. It has since prompted retaliatory Israeli airstrikes on Gaza that have killed more than 1,055 people.
During the ongoing conflict between Israel and Hamas, the Middle East is witnessing a significant shift in the patterns of GPS interference, with data showing an increase in disruptions compared to just a week prior, according to Defence and Security Middle East.
Reports have surfaced indicating Hamas has actively jammed Israeli communication systems during the initial stages of the conflict. This strategic move highlights the increase of jamming GPS and communication networks in modern warfare scenarios, where precision and coordination are imperative.
Positioning, navigation and timing (PNT) services play a role in a variety of military systems and civil technologies. These services not only guide precision warfare, but also facilitate efficient transportation, communication and various civilian applications.
The Middle East has a history of being a focal point for jamming and spoofing activities, impacting not only security but also regional stability and even commercial flights.
For example, there have been recent reports of recurring interference allegedly caused by Russian systems in Syria, which frequently disrupts air traffic at Tel Aviv’s Ben Gurion airport. Regulatory bodies, such as the Federal Aviation Administration, the European Union Aviation Safety Agency, and Israel’s aviation authority, advised airlines to exercise caution when operating in the airspace of the region. Multiple airlines have now canceled or suspended flights.
With airlines reducing services and regulatory bodies advising caution, the conflict’s repercussions extend well beyond the battlefield, highlighting the critical need for security assessments or alternative PNT systems to protect civilians.
The Mw 7.8 and Mw 7.5 Kahramanmaraş Earthquake Sequence struck near Nurdağı, Türkiye, on Feb. 6. It collapsed several buildings and has claimed more than 50,000 lives. The impact of the initial earthquakes was very severe, but to make matters worse, later in February, a Mw 6.4 tremor struck near Antakya, a city near Türkiye’s border with Syria. This created further damage to infrastructure and claimed more victims.
Image: Screenshot of video from NBC News
The Specifics
The United States Geological Survey reports that the earthquake resulted from strike-slip faulting at shallow depths. The earthquake sequence displaced numerous fault segments within the East Anatolian Fault zone. Early estimates indicate about 185 miles of fault length ruptured. Parts of the North Anatolian Fault shifted 10 feet, while segments of the East Anatolian Fault slid more than 30 feet.
Historic Site Suffers
Gaziantep Castle dates back to the second millennium B.C. It has been used in many capacities throughout history, and more recently, stood as a museum for visitors to learn about its rich history. The castle was reduced to rubble in the earthquake. Other historical sites that sustained damage include the Yeni Mosque and the ancient city of Aleppo in Syria.
Image: Screenshot of CNN video
Earth Opens Up
The earthquake destroyed cities all over Türkiye and northern Syria, but they are not the only areas that suffered dramatic effects. A verdant olive grove in Tepehan, Hatay Province, Türkiye, was completely divided when the ground split, creating a 984-foot-long valley in the middle of the grove. The valley is more than 130 feet deep and has created issues for the 7,000 people that inhabit the area.
On Feb. 6, the United Nations Satellite Center (UNOSAT) announced via Twitter that it had activated emergency mapping services of Turkiye and northern Syria after the magnitude 7.8 earthquake hit earlier that day. The satellite images provide an overview of the damage, which can be used for humanitarian efforts and disaster relief, reported Space.com.
UNOSAT provides emergency mapping services, upon request, to provide satellite imagery analysis during emergencies and disasters. The maps show infrastructure that has been damaged during an emergency, which can then be used to provide relief by disaster response groups.
The impact of the earthquakes was significant and ranks in the red for economic losses and orange for fatalities, according to the U.S. Geological Survey (USGS). (Image: UNOSAT)
The earthquake caused massive destruction throughout Turkiye and Northern Syria, causing an estimated death toll of more than 19,000 as of Feb. 9. Several historical structures dating back thousands of years have also been severely damaged.
UNOSAT started in 2001 and is hosted by the European Organization for Nuclear Research. It does not operate its own satellites, but coordinates with United Nations member states to gather imagery from government agencies and privately owned satellites. United Nations offices, government agencies and relief organizations can request access to imagery collected by UNOSAT.
The USGS reports the earthquake resulted from strike-slip faulting at shallow depths. It appears to be associated with either the East Anatolia fault zone or the Dead Sea transform fault zone. (Image: UNOSAT)
All maps of Turkey and northern Syria from UNOSAT can be found here. A live interactive map can be found here.
Three earthquakes of magnitude 6 or larger have occurred in Turkiye and northern Syria since 1970. The largest was a magnitude 6.7 earthquake in January 2020. (Credit: USGS)
On Feb. 6, a magnitude 7.8 earthquake struck Turkiye and northern Syria collapsing buildings and killing more than 2,000 people, followed by magnitude 6.7 aftershocks. The impact of the earthquakes was significant and ranks in the red for economic losses and orange for fatalities, according to the United States Geological Survey (USGS).
The USGS reports the earthquake resulted from strike-slip faulting at shallow depths. It appears to be associated with either the East Anatolia fault zone or the Dead Sea transform fault zone.
Historical buildings throughout Turkey have been severely damaged, including the Yeni Mosque and the Gaziantep Castle, which date back thousands of years.
War-torn Syria — specifically Aleppo, Hama and Latakia — have also sustained severe damage to infrastructure that was already fragile.
The effects of this earthquake were felt as far as Lebanon and Israel.
Parts of the historic Gaziantep Castle collapsed, as it lies close to epicenter of the magnitude 7.8 earthquake. (Image: JudyDillon/ iStock / Getty Images Plus/Getty Images)
Historical Gaziantep Castle’s east, south and southeast bastions collapse, leaving debris scattered on the road after major 7.4-magnitude earthquake struck Türkiye’s southeasthttps://t.co/5j2soYI6hCpic.twitter.com/1n6whCr2gY
The U.S. Maritime Administration issued an expanded advisory for GPS disruptions in the Middle East. The new advisory renews and repeats warnings for the eastern Mediterranean and adds the Port of Jeddah in Saudi Arabia.
Reports have also been filed with the U..S Coast Guard Navigation Center about disruptions in Israel’s Port of Haifa and the Straits of Hormuz.
Analysis by the Resilient Navigation and Timing Foundation and the non-profit firm C4ADS has also shown on-going disruptions in Russian waters of the Black Sea. Also, GPS jamming by Russia is suspected during a recent NATO exercise.
The armed conflict in Syria has been blamed for much of the disruptions off of its shores.
GPS jamming in support of illegal fishing is suspected by some as the cause of problems off of Port Said, and disputes over mineral rights has been suggested for the disruptions seen near Cyprus.
Disruptions in the Black Sea are suspected to be security measures associated with the travel of Russian government officials.
Map: U.S. Maritime Administration Advisory 2018-014-GPS
Text of Maritime Administration Advisory
2018-014-GPS Interference-Eastern Mediterranean and Red Sea
This revised advisory cancels U.S. Maritime Advisory 2018-007.
Reference: U.S. Maritime Alerts 2018-004A, 2018-004B, 2018-008A.
Issue: Multiple instances of significant GPS interference continue to be reported by vessels and aircraft operating in the Eastern Mediterranean Sea. These reports have been concentrated near Port Said, Egypt, the Suez Canal, and in the vicinity of the Republic of Cyprus. Additional instances of similar interference were reported in October 2018 near Jeddah Port, Saudi Arabia. This interference is resulting in lost or otherwise altered GPS signals affecting bridge navigation, GPS-based timing and communications equipment.
Guidance: Exercise caution when transiting these areas. The U.S. Coast Guard Navigation Center (NAVCEN) and NATO Shipping Center websites contain information regarding effective navigation practices for vessels experiencing GPS interference. The information reaffirms safe navigation practices when experiencing possible GPS disruption, provides useful details on reporting possible GPS disruption, and is intended to generate further discussions within the maritime community about other disruption mitigation practices and procedures. This guidance also recommends taking note of critical information such as the location (latitude/longitude), date/time, and duration of the outage/disruption, and providing photographs or screen shots of equipment failures during a disruption to facilitate analysis. The NAVCEN information is available at https://go.usa.gov/xQBaU.
Contact Information: GPS disruptions or anomalies should be immediately reported to the NAVCEN at https://go.usa.gov/xQBaw or via phone at 703-313-5900, 24 hours a day. The NATO Shipping Center has requested that instances of GPS interference also be reported to them using the format on their Cyber Interference link.
Cancellation: This message will automatically expire on May 2, 2019.
The ongoing Syrian crisis, which broke out in April 2011, has been a severe humanitarian disaster, with more than 190,000 deaths since the start of the conflict. However, evaluating the ongoing crisis in Syria is challenging, because reliable and comprehensive witness reports are hard to gather in a warzone. Therefore, satellite images, as one of the few sources of objective information, are potentially of great importance.
In their recent study published in International Journal of Remote Sensing, Xi Li and Deren Li analyzed the effect of the Syrian crisis on levels of night-time light as a means of evaluating and monitoring the conflict. By comparing the levels of light in March 2011 and February 2014 (see Figure 1), they found that in all of the provinces, the levels of night-time light had declined sharply following the breakout of the conflict. Indeed, in most provinces, the level of night-time light decreased by more than 60 percent.
Notably, the authors also found that the number of internally displaced persons (IDPs) from each province showed a linear correlation with the level of night-light loss. This relationship between the number of displaced persons and the drop in night-time light levels may allow for the quantitative estimation of the number of IDPs from other areas of conflict, such as Iraq, where the activities of Islamic State are causing significant civil unrest.
