Reported seismic-like event (likely no quake): 5.6 km northwest of Ha Noi, Hanoi, Vietnam, Wednesday, Sep 29, 2021 at 2:32 pm (GMT +7)

29 Sep 07:39 UTC: First to report: VolcanoDiscovery after 7 minutes.

Earthquake details

Date & time	Sep 29, 2021 07:32:14 UTC
Local time at epicenter	Wednesday, Sep 29, 2021 at 2:32 pm (GMT +7)
Status	disregarded
Magnitude	unknown (3?)
Depth	10.0 km
Epicenter latitude / longitude	21.06291°N / 105.80561°E (Hanoi, Vietnam)
Antipode	21.063°S / 74.194°W
Shaking intensity	Weak shaking
Felt	2 reports
Primary data source	VolcanoDiscovery (User-reported shaking)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	6 km (4 mi) NW of Ha Noi (pop: 8,053,700) \| Show on map \| Quakes nearby 11 km (7 mi) NNE of Hà Đông (pop: 50,900) \| Show on map \| Quakes nearby 32 km (20 mi) ESE of Sơn Tây (pop: 40,600) \| Show on map \| Quakes nearby 39 km (24 mi) WSW of Cung Kiệm (Bắc Ninh) (pop: 80,000) \| Show on map \| Quakes nearby 88 km (55 mi) NW of Thai Bình (Thái Bình) (pop: 53,100) \| Show on map \| Quakes nearby 91 km (57 mi) NNW of Ninh Binh (Ninh Bình) (pop: 36,900) \| Show on map \| Quakes nearby 94 km (58 mi) WNW of Haiphong (pop: 602,700) \| Show on map \| Quakes nearby 100 km (62 mi) W of Thành Phố Uông Bi (Tỉnh Quảng Ninh) (pop: 63,800) \| Show on map \| Quakes nearby 110 km (68 mi) N of Bỉm Sơn (Tỉnh Thanh Hoa) (pop: 53,800) \| Show on map \| Quakes nearby 118 km (73 mi) SE of Yên Bai (Yên Bái) (pop: 96,500) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 33°C (91 F), humidity: 55%, wind: 2 m/s (3 kts) from WNW
Estimated seismic energy released	2 x 10⁹ joules (554 kilowatt hours, equivalent to 0.477 tons of TNT) \| about seismic energy

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Seismograms

Seismic station: Son La Vietnam (SLV/RM network) | Distance from quake: 199 km / 124 mi | Show on map | Station Info

Seismic station Son La Vietnam: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Translate

hanoi (0 km SE of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 s : Light one shake. Felt it sitting on bed

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