{"source":"earthquakes-significant","note":"Free 5-item preview. The full feed is $0.05/call at GET /v1/earthquakes-significant/changes.","question":"Which earthquakes (significant, past month) occurred since T, and how large / significant were they?","sample":[{"source":"earthquakes-significant","entityId":"quake:us7000st95","type":"earthquake","title":"M 6.7 - 42 km SE of Palu, Indonesia","summary":"Magnitude 6.7 at 42 km SE of Palu, Indonesia, depth 11km. PAGER alert: yellow.","significance":9,"detectedAt":"2026-07-15T20:17:23.083Z","effectiveDate":"2026-06-16T03:27:44.379Z","sourceUrl":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000st95","detail":{"magnitude":6.7,"place":"42 km SE of Palu, Indonesia","depthKm":11,"tsunami":false,"alert":"yellow","usgsSig":698}},{"source":"earthquakes-significant","entityId":"quake:us7000stbz","type":"earthquake","title":"M 6.3 - 262 km SSE of Dunhuang, China","summary":"Magnitude 6.3 at 262 km SSE of Dunhuang, China, depth 10km. PAGER alert: orange.","significance":9,"detectedAt":"2026-07-15T20:17:23.083Z","effectiveDate":"2026-06-16T09:06:55.517Z","sourceUrl":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000stbz","detail":{"magnitude":6.3,"place":"262 km SSE of Dunhuang, China","depthKm":10,"tsunami":false,"alert":"orange","usgsSig":1000}},{"source":"earthquakes-significant","entityId":"quake:us7000stcs","type":"earthquake","title":"M 5.4 - 272 km S of Dunhuang, China","summary":"Magnitude 5.4 at 272 km S of Dunhuang, China, depth 10km. PAGER alert: yellow.","significance":7,"detectedAt":"2026-07-15T20:17:23.083Z","effectiveDate":"2026-06-16T09:45:26.194Z","sourceUrl":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000stcs","detail":{"magnitude":5.4,"place":"272 km S of Dunhuang, China","depthKm":10,"tsunami":false,"alert":"yellow","usgsSig":650}},{"source":"earthquakes-significant","entityId":"quake:us7000stti","type":"earthquake","title":"M 6.6 - central Mid-Atlantic Ridge","summary":"Magnitude 6.6 at central Mid-Atlantic Ridge, depth 10km. PAGER alert: green.","significance":9,"detectedAt":"2026-07-15T20:17:23.083Z","effectiveDate":"2026-06-17T18:56:58.028Z","sourceUrl":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000stti","detail":{"magnitude":6.6,"place":"central Mid-Atlantic Ridge","depthKm":10,"tsunami":false,"alert":"green","usgsSig":670}},{"source":"earthquakes-significant","entityId":"quake:us7000sui3","type":"earthquake","title":"M 6.6 - 148 km ESE of Petropavlovsk-Kamchatsky, Russia","summary":"Magnitude 6.6 at 148 km ESE of Petropavlovsk-Kamchatsky, Russia, depth 10km. PAGER alert: green.","significance":9,"detectedAt":"2026-07-15T20:17:23.083Z","effectiveDate":"2026-06-19T06:52:31.675Z","sourceUrl":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000sui3","detail":{"magnitude":6.6,"place":"148 km ESE of Petropavlovsk-Kamchatsky, Russia","depthKm":10,"tsunami":false,"alert":"green","usgsSig":670}}]}