Quakes

4 km ese of derince, turkey

USGS-USP0009D4Z

issued: 1999-08-17 00:01Z
status: cancelled 1999-08-20 00:01Z
self-cancels: 1999-08-20 00:01Z
authority: USGS NEIC
sea: Sea of Marmara
position: 40.748, 29.864
source: usgs · first seen 2026-09-03 15:08Z

Original warning text

4 KM ESE OF DERINCE, TURKEY.
1. EARTHQUAKE MAGNITUDE 7.6 (MWC) IN 40.748N 029.864E, DEPTH 17 KM AT 170001Z AUG 99.
2. USGS EVENT USP0009D4Z. https://earthquake.usgs.gov/earthquakes/eventpage/usp0009d4z

This area · earthquake & tsunami bulletins

9 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

24 km se of marmara ereğlisi, turkey2025-04-23
15 km w of düzce, turkey2022-11-23
17 km ese of marmara ere?lisi, turkey2019-09-26
28 km nne of gökçeada, turkey2003-07-06
7 km ssw of düzce, turkey1999-11-12
8 km s of düzce, turkey1999-11-12

Season · when earthquake & tsunami bulletins happen here

month of issue, all years in the archive

Timeline · 2 messages since 1999-08-17 · closed 1999-09-16

4 km ese of derince, turkey this message1999-08-17 → 1999-08-20
4 km se of köseköy, turkey1999-09-13 → 1999-09-16

joined by proximity

Nearby now · within 120 nm

Pipeline operations 05 jun thru 07 oct by M/V oruc reis, M/V mukavemet, M/V zaganos pasa, M/V denar…Cable ops · 115.9 nm

Worldwide now

5 earthquake & tsunami bulletins in force · see all

Quakes

Undersea earthquakes of magnitude 5.5 and above (USGS) and the tsunami bulletins NAVAREA coordinators relay. All current earthquake & tsunami bulletins →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.