Earthquake Information: Average Mag. 4.2 earthquake – North Pacific Ocean, 50 miles west of Kailua-Kona, Hawaii County, USA, on Wednesday, July 7, 2021 at 17:41 (GMT)

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An average earthquake of 4.2 magnitude at a depth of 10 km

Jul 7 17:45 UTC: first reported: USGS after 5 minutes Jul 7 17:46: volume recalculated from 3.8 to 3.9 …. [show all] … Jul 7 17:57: Volume has been recalculated from 3.9 to 4.2. The depth of the epicenter was recalculated from 10.5 to 10.2 km (6.5 to 6.3 miles). Epicenter position corrected 1.5 km (0.9 mi) SW, 7 July 18:00: magnitude recalculated from 4.2 to 3.9. The depth of the epicenter was recalculated from 10.2 to 10.5 km (from 6.3 to 6.5 mi). The epicenter was corrected 1.5 km (0.9 mi) toward the northeastern northeastern United States. Jul 7 18:02: Volume has been recalculated from 3.9 to 4.2. The depth of the epicenter was recalculated from 10.5 to 21.6 km (6.5 to 13.4 miles). Epicenter position corrected by 4.5 km (2.8 mi) toward E.7 Jul 18:02: Epicenter depth recalculated from 21.6 to 10.2 km (13.4 to 6.3 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward WSW 7 Jul 18:03: Epicenter depth recalculated from 10.2 to 21.6 km (from 6.3 to 13.4 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward ENE 7 Jul 18:03: Epicenter depth recalculated from 21.6 km (3.5 mi) (13.4 to 6.3 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward WSW 7 Jul 18:04: Epicenter depth recalculated from 10.2 to 21.6 km (from 6.3 to 13.4 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward ENE 7 Jul 18:04: Epicenter depth recalculated from 21.6 to 10.2 km (from 13.4 to 6.3 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward WSW 7 Jul 18:05: Epicenter depth recalculated from 10.2 to 21.6 km (from 6.3 to 13.4 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward ENE 7 Jul 18:05: Epicenter depth recalculated from 21.6 to 10.2 km (from 13.4 to 6.3 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward WSW 7 Jul 18:06: Epicenter depth recalculated from 10.2 to 21.6 km (from 6.3 to 13.4 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward ENE 7 Jul 18:06: Epicenter depth recalculated from 21.6 km (3.5 mi) (from 13.4 to 6.3 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward WSW 7 Jul 18:08: magnitude recalculated from 4.2 to 3.9. The depth of the epicenter was recalculated from 10.2 to 10.5 km (from 6.3 to 6.5 mi). The epicenter has been corrected 1.5 km (0.9 mi) toward northeastern Europe. Jul 7 18:10: Volume has been recalculated from 3.9 to 4.2. The depth of the epicenter was recalculated from 10.5 to 21.6 km (6.5 to 13.4 miles). The epicenter was corrected 4.5 km (2.8 mi) eastward July 7 18:10: the epicenter depth was recalculated from 21.6 to 10.2 km (from 13.4 to 6.3 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward WSW 7 Jul 18:11: magnitude recalculated from 4.2 to 3.9. The depth of the epicenter was recalculated from 10.2 to 10.5 km (from 6.3 to 6.5 mi). The epicenter has been corrected 1.5 km (0.9 mi) toward the northeastern northeastern United States. July 7 18:15: Destiny was recalculated from 3.9 to 4.2. The depth of the epicenter was recalculated from 10.5 to 21.6 km (6.5 to 13.4 miles). Epicenter position corrected by 4.5 km (2.8 mi) toward E.7 Jul 18:15: Epicenter depth recalculated from 21.6 to 1.0 km (13.4 to 0.6 mi). The epicenter was corrected by 2.3 km (1.4 mi) toward southeastern Europe. Jul 7 18:16: Destiny was recalculated from 4.2 to 3.9. The depth of the hypocenter was recalculated from 1.0 to 10.5 km (0.6 to 6.5 mi). Epicenter position corrected by 5.7 km (3.5 mi) NW July 7 18:17: magnitude recalculated from 3.9 to 4.2. The depth of the epicenter was recalculated from 10.5 to 21.6 km (6.5 to 13.4 miles). Epicenter position corrected by 4.5 km (2.8 mi) toward E.7 Jul 18:17: Epicenter depth recalculated from 21.6 to 1.0 km (13.4 to 0.6 mi). Epicenter position corrected by 2.3 km (1.4 mi) toward SSE 7 Jul 18:18: Epicenter depth recalculated from 1.0 to 21.6 km (0.6 to 13.4 mi). Epicenter position corrected to 2.3 km (1.4 mi) northwest toward July 7 18:18: epicenter depth recalculated from 21.6 to 1.0 km (13.4 to 0.6 mi). Epicenter position corrected by 2.3 km (1.4 mi) toward SSE 7 Jul 18:20: Epicenter depth recalculated from 1.0 to 21.6 km (0.6 to 13.4 mi). Epicenter position corrected 2.3 km (1.4 mi) northwest toward July 7 18:20: epicenter depth recalculated from 21.6 km (1.4 mi) (13.4 to 0.6 mi). Epicenter position corrected by 2.3 km (1.4 mi) toward SSE 7 Jul 18:21: Epicenter depth recalculated from 1.0 to 21.6 km (0.6 to 13.4 mi). The epicenter was corrected 2.3 km (1.4 mi) northwest of July 7 18:21: the epicenter depth was recalculated from 21.6 to 1.0 km (13.4 to 0.6 mi). The epicenter was corrected by 2.3 km (1.4 mi) toward southeastern Europe. July 7 18:22: Destiny was recalculated from 4.2 to 3.9. The depth of the hypocenter was recalculated from 1.0 to 10.5 km (0.6 to 6.5 mi). Epicenter position corrected by 5.7 km (3.5 mi) NW July 7 18:23: magnitude recalculated from 3.9 to 4.2. The depth of the epicenter was recalculated from 10.5 to 21.6 km (6.5 to 13.4 miles). Epicenter position corrected by 4.5 km (2.8 mi) toward E.7 Jul 18:23: Epicenter depth recalculated from 21.6 to 1.0 km (13.4 to 0.6 mi). The epicenter was corrected by 2.3 km (1.4 mi) toward SSE. July 7 18:24: The depth of the epicenter was recalculated from 1.0 to 21.6 km (0.6 to 13.4 miles). Epicenter position corrected to 2.3 km (1.4 mi) northwest toward July 7 18:24: Epicenter depth recalculated from 21.6 km (1.4 mi) (13.4 to 0.6 mi). Epicenter position corrected by 2.3 km (1.4 mi) toward SSE 7 Jul 18:25: Epicenter depth recalculated from 1.0 to 10.2 km (0.6 to 6.3 mi). Epicenter position corrected by 6.3 km (3.9 mi) toward W.7 Jul 18:26: Epicenter depth recalculated from 10.2 to 21.6 km (from 6.3 to 13.4 mi). Epicenter position corrected by 5.6 km (3.5 mi) toward ENE 7 Jul 18:26: Epicenter depth recalculated from 21.6 to 1.0 km (13.4 to 0.6 mi). Epicenter position corrected by 2.3 km (1.4 mi) toward SSE Jul 7 18:27: Epicenter depth recalculated from 1.0 to 21.6 km (0.6 to 13.4 mi). Epicenter position corrected to 2.3 km (1.4 mi) northwest toward July 7 18:27: Epicenter depth recalculated from 21.6 to 1.0 km (13.4 to 0.6 mi). Epicenter position corrected by 2.3 km (1.4 mi) toward SSE 7 Jul 18:28: Epicenter depth recalculated from 1.0 to 10.2 km (0.6 to 6.3 mi). Epicenter position corrected by 6.3 km (3.9 mi) toward W.7 Jul 18:29: Epicenter depth recalculated from 10.2 to 21.6 km (from 6.3 to 13.4 mi). The epicenter was corrected by 5.6 km (3.5 mi) toward the ENE. July 7 18:29: The depth of the epicenter was recalculated from 21.6 to 1.0 km (13.4 to 0.6 miles). Epicenter position corrected by 2.3 km (1.4 mi) toward SSE 7 Jul 18:31: Epicenter depth recalculated from 1.0 to 10.2 km (0.6 to 6.3 miles). The epicenter was corrected by 6.3 km (3.9 mi) in the direction of W.

Updated Wednesday, July 7, 2021, 17:51

A 3.9-magnitude earthquake struck 50 miles northwest of Kailua-Kona in Hawaii, US, in the morning.

3.9 earthquake July 7 7:41 am (GMT -10)

The US Geological Survey reported a 3.9-magnitude earthquake in the United States near Kailua-Kona, Hawaii County, Hawaii, just 10 minutes ago. The earthquake occurred on the morning of Wednesday, July 7, 2021 at 7:41 am local time at a shallow depth of 6.5 miles. The exact magnitude, epicenter and depth of the earthquake can be reviewed within the next few hours or minutes as seismologists review the data and improve their calculations, or when other agencies release their reports. The Earthquake Monitoring Center (EMSC) also recorded the 3.9-magnitude earthquake. Cities or towns near the epicenter where a very weak earthquake may have been felt include Kailua (population 9,600) located 49 miles from the epicenter, Kailua-Kona (Pop). 12,000) 50 miles, and Holualoa (population 8,500) 53 miles. In Wailea (located 5900, 58 miles away), and Waikoloa (4800, 60 miles away), the earthquake may not have been felt.

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Date and Time: Jul 7, 2021 17:41:00 UTC – Size: 4.2 Depth: 10.2 km Latitude/Longitude Epicenter: 19.87367°N/156,724°W (North Pacific Ocean, Hawaii, US) Nearest volcano: Hualalai (91 km/57 mi) Nearby towns and cities: 79 km (49 mi) west of Kalua (County of Hawaii) (population: 9,640) -> See nearby earthquakes! 80 km (50 mi) northwest of Kailua-Kona (County of Hawaii) (pop: 12,000) -> See nearby earthquakes! 94 km (58 mi) northwest of Captain Cook (pop: 3430) -> See nearby earthquakes! 98 km (61 mi) west of Waikoloa (population: 4,810) -> See nearby earthquakes! 103 km (64 mi) southwest of Kīhei (population: 20,900) -> See nearby earthquakes! 115 km (72 mi) south of Weloko (population: 15,300) -> See nearby earthquakes! 116 km (72 mi) SSW of Kahului (population: 26,300) -> See nearby earthquakes! 172 km (107 mi) west of Hilo (population: 43,300) -> See nearby earthquakes! 188 km (117 mi) southeast of Honolulu (pop: 49900) -> See nearby earthquakes! 198 km (123 mi) south of Honolulu (population: 371,700) -> See nearby earthquakes! 110 km (69 mi) southwest of Maui (population: 154,800) -> See nearby earthquakes! 117 km (72 mi) northwest of the island of Hawaii (population: 185,100) -> see nearby earthquakes Weather at the epicenter: light rain 24.9 °C (77 °F), humidity: 78%, wind: 5 m/s (9 kts) from ENE Raw data source: USGS (US Geological Survey) Rated outgoing energy: 1.3 x 1011 Joules (35 megawatt-hours, equivalent to 30.1 tons of TNT)

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If you felt this earthquake (or if you were near the epicenter), please share your experience and submit a short “I felt it” report! Other users would love to hear about it, and also if you didn’t feel the earthquake despite being in the area, please report it! Your contribution is also valuable for seismology, earthquake risk analysis, and mitigation efforts. You can use your device’s location or a map to indicate where you are during the earthquake. Thank you! Data on the same earthquake was reported by different agencies

Information: The more agencies report the same earthquake and publish similar data, the more you can trust the data. It usually takes up to a few hours for earthquake parameters to be calculated with near-perfect accuracy.

Mag.DepthLocationSource4.210.2 km79 Km WNW of Kalaoa, HawaiiUSGSunknownn/aHawaii, USA Discovery Volcano 4.222 km HAWAII REGION, HAWAIIEMSC User reports about this earthquake (9)

Contribute: Leave a comment if you find a particular report interesting or want to add to it. Teach as something not decent. Tag useful or interesting. Submit your user report!

Kailua-Kona, HI (85.7 km ESE from the epicenter) [Map] / Weak (MMI III) / Single lateral vibration / Very short: I felt the floor moving then my partner in a completely different room felt the bed shake

Kona, Hawaii (92.4 km from the SSW epicenter) [Map] Mild vibration (MMI IV): 10 seconds

Honolulu, HI 96813 / Very weak vibration (MMI II) / Single vertical protrusion / Very short: No vibration. One bump.

Kaneohe (200.3 km northwest of the epicenter) [Map] / Very weak shaking (MMI II) / rattling, shaking / 1-2 seconds: My house shook lightly for a few seconds

The house (197.1 km northwest of the epicenter) [Map] / Weak (MMI III) / Single lateral shaking / Very short: Was this an earthquake?

South Kalua (78.6 km east of the epicenter) [Map] /very weak vibration (MMI II) / rattling, vibration / 2-5 s: junctions snapping onto outer lanai and surface

Honolulu / Manoa / Very weak vibration (MMI II) / Single lateral vibration / Very short: Very short vibration

Kahului keauhou / Very weak vibration (MMI II)

Kailua / Very weak vibration (MMI II) / Single lateral vibration / 1-2 seconds: hardly discernible in Kona

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