On 3/21/2026 12:16:46 PM, an earthquake occurred in Northern Mid-Atlantic Ridge potentially affecting [unknown]. The earthquake had Magnitude 6.6M, Depth:10km.
Shiveluch Volcano Volcanic Ash Advisory: REMNANT VA CLD OBS
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:
FVXX23 at 10:15 UTC, 21/03/26 from KNES
VA ADVISORY
DTG: 20260321/1013Z
VAAC: WASHINGTON
VOLCANO: SHEVELUCH 300270
PSN: N5639 E16122
AREA: KAMCHATKA
SOURCE ELEV: 10771 FT AMSL
ADVISORY NR: 2026/015
INFO SOURCE: GOES-19. NWP MODELS.
ERUPTION DETAILS: REMNANT VA CLD OBS
OBS VA DTG: 21/0930Z
OBS VA CLD: FL200/360 N4550 W12755 – N4519 W12738
– N4429 W12935 – N4450 W13125 – N4516 W13130 –
N4518 W12940 – N4550 W12755 MOV NE 90KT
FCST VA CLD +6HR: 21/1530Z FL200/360 N5004 W11626
– N4907 W11610 – N4843 W11910 – N5001 W11923 –
N5004 W11626
FCST VA CLD +12HR: 21/2130Z NO VA EXP
FCST VA CLD +18HR: 22/0330Z NO VA EXP
RMK: REMNANT VA CLD OBS IN STLT IMG IN NPAC. NWP
MDL GUIDANCE FCSTS GEN NE MOVMT THRU T+6. VA
FCSTS TO MOV OVR PACIFIC NW USA IF VA PERSISTS,
…MONAGHAN
NXT ADVISORY: WILL BE ISSUED BY 20260321/1615Z
Green earthquake (Magnitude 5.6M, Depth:192.58km) in Argentina 21/03/2026 10:00 UTC, 1.3 million in MMI III.
Mayon Volcano Volcanic Ash Advisory: ERUPTION AT 20260321/0702Z VA CLD UNKNOWN REPORTED OBS VA DTG: 21/0820Z
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:
FVFE01 at 08:37 UTC, 21/03/26 from RJTD
VA ADVISORY
DTG: 20260321/0837Z
VAAC: TOKYO
VOLCANO: MAYON 273030
PSN: N1315 E12341
AREA: PHILIPPINES
SOURCE ELEV: 2462M AMSL
ADVISORY NR: 2026/356
INFO SOURCE: HIMAWARI-9 PHIVOLCS
ERUPTION DETAILS: ERUPTION AT 20260321/0702Z VA CLD UNKNOWN REPORTED
OBS VA DTG: 21/0820Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL180 020/9KT
FCST VA CLD +6 HR: NOT AVBL
FCST VA CLD +12 HR: NOT AVBL
FCST VA CLD +18 HR: NOT AVBL
RMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE
IMAGERY.
NXT ADVISORY: NO FURTHER ADVISORIES=
Aira Volcano (Japan) activity update Mar 20, 2026 – Continuing eruption
The Japan Meteorological Agency (JMA) reported that the eruption continued at Aira between 16 March 2026 (local) and 20 March 2026 (local). The alert level remained at „Level 3 – Restriction on proximity to the volcano“ (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)
Current Alerts:
Observatory alert level: „Level 3 – Restriction on proximity to the volcano“ (on a 5-level scale)
Aviation Alert Level: unavailable or not collected
Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Mar 20, 2026