M4.5
21:50 UTC
Magnitude 4.5, depth 10 km. reviewed by USGS.
Event started
THE PLANETARY JOURNAL / DAILY EDITION
One planet. One day. A permanent record.
Updates are delayed. This is the last published record.
Earthquakes · M4.5+
18
Within the daily record
Largest earthquake
M 5.6
Observed magnitude
Space-weather records
2
Bulletins and significant flares
Source checks complete
7 / 8
Partial coverage · see source notes
Markers show source-reported points, not affected areas. Space-weather records appear separately.
Bars count earthquakes in the collected daily record. Unelapsed hours have no observations.
Strongest recorded flare today
C1.5
Latest estimated Kp / 9
1.33
Kp 5 marks the G1 geomagnetic threshold. Flare class alone does not predict an Earth impact. Last sample 21:00 UTC.
33 RECORDS
M4.5
21:50 UTC
Magnitude 4.5, depth 10 km. reviewed by USGS.
Event started
Information
21:09 UTC
Bulletin evaluation · issued 2026-09-29
NOAA National information bulletin. Follow the original message for affected areas, validity and any later cancellation. This archive does not assert a current warning.
Bulletin issued
M4.7
20:45 UTC
Magnitude 4.7, depth 10 km. reviewed by USGS.
Event started
M4.7
16:13 UTC
Magnitude 4.7, depth 56.776 km. reviewed by USGS.
Event started
M4.6
15:31 UTC
Magnitude 4.6, depth 10 km. reviewed by USGS.
Event started
M4.8
15:17 UTC
Magnitude 4.8, depth 114.229 km. reviewed by USGS.
Event started
Green
15:00 UTC
GDACS green alert. Reporting period: 2026-09-29 to 2026-09-30.
Event started
M4.9
14:14 UTC
Magnitude 4.9, depth 153.006 km. reviewed by USGS.
Event started
M5.6
13:06 UTC
Magnitude 5.6, depth 10 km. reviewed by USGS.
Event started
WATCH
13:01 UTC
WATCH: Geomagnetic Storm Category G1 Predicted · Highest Storm Level Predicted by Day: · Sep 30: None (Below G1) Oct 01: None (Below G1) Oct 02: G1 (Minor) · THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT · Comment: 28 Sep CME inbound · NOAA Space Weather Scale descriptions can be found at · www.swpc.noaa.gov/noaa-scales-explanation
Bulletin issued
M5.4
12:40 UTC
Magnitude 5.4, depth 10 km. reviewed by USGS.
Event started
M4.8
11:36 UTC
Magnitude 4.77, depth 10 km. reviewed by USGS.
Event started
M4.8
11:27 UTC
Magnitude 4.8, depth 10 km. reviewed by USGS.
Event started
M5.0
10:42 UTC
Magnitude 5, depth 10 km. reviewed by USGS.
Event started
M4.5
10:22 UTC
Magnitude 4.5, depth 134.763 km. reviewed by USGS.
Event started
M4.5
08:21 UTC
Magnitude 4.5, depth 41.479 km. reviewed by USGS.
Event started
M4.8
06:38 UTC
Magnitude 4.8, depth 35 km. reviewed by USGS.
Event started
ALERT
05:02 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu · Continuation of Serial Number: 3747 · Begin Time: 2026 Sep 26 1535 UTC · Yesterday Maximum 2MeV Flux: 4128 pfu · Max time: 2026 Sep 28 1440 UTC
Bulletin issued
M4.8
04:16 UTC
Magnitude 4.8, depth 35.08 km. reviewed by USGS.
Event started
M5.3
03:23 UTC
Magnitude 5.3, depth 10 km. reviewed by USGS.
Event started
M4.5
00:05 UTC
Magnitude 4.5, depth 35 km. reviewed by USGS.
Event started
M4.9
2026-09-28
Magnitude 4.9, depth 70.972 km. reviewed by USGS.
Event started
Green
2026-09-28
GDACS green alert. Reporting period: 2026-09-28 to 2026-09-30.
Event started
Green
2026-09-27
GDACS green alert. Reporting period: 2026-09-27 to 2026-09-30.
Event started
Context
2026-09-24
NASA EONET event context. Location and timing may be approximate; follow the original source for authoritative details.
Source geometry date
Green
2026-09-23
GDACS green alert. Reporting period: 2026-09-23 to 2026-09-30.
Event started
Red
2026-09-21
GDACS red alert. Reporting period: 2026-09-21 to 2026-09-30.
Event started
Green
2026-09-19
GDACS green alert. Reporting period: 2026-09-19 to 2026-09-29.
Event started
Green
2026-09-13
GDACS green alert. Reporting period: 2026-09-13 to 2026-09-30.
Event started
Orange
2026-06-21
GDACS orange alert. Reporting period: 2026-06-21 to 2026-09-30.
Event started
Orange
2026-05-21
GDACS orange alert. Reporting period: 2026-05-21 to 2026-09-30.
Event started
Orange
2026-04-21
GDACS orange alert. Reporting period: 2026-04-21 to 2026-09-30.
Event started
Orange
2025-12-21
GDACS orange alert. Reporting period: 2025-12-21 to 2026-09-30.
Event started
Reporting interval: 2026-09-29, 00:00–24:00 UTC. Issued bulletins and event observations are labelled separately. Future-dated or malformed records are withheld. This page preserves a dated record and does not certify that any warning is currently active.
Download this edition’s data ↓Latest captured RONI
+1.36°C
JJA 2026 · three-month mean