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Moderate mag. 4.0 earthquake - 13 km east of Pamplona, Navarra, Spain, on 30 Aug 07:57:57 am

Moderate mag. 4.0 earthquake - 13 km east of Pamplona, Navarra, Spain, on 30 Aug 07:57:57 am Moderate mag. 4.0 earthquake - 13 km east of Pamplona, Navarra, Spain, on 30 Aug 07:57:57 am

Moderate magnitude 4.0 earthquake at 10 km depth

30 Aug 06:02 UTC: First to report: IGN after 4 minutes.

Aug 30 06:04: Source data changed from EMSC to IGN
Aug 30 06:28: Magnitude recalculated from 3.7 to 4.0.
Hypocenter depth recalculated from 1.0 to 10.0 km.
Update Sun, 30 Aug 2020, 07:01
Magnitude 4 quake felt in northern Spain
Location of this morning's felt quake near Pamplona, Spain
Location of this morning's felt quake near Pamplona, Spain
A light earthquake of magnitude 4 hit this morning at 07:57 local time approx. 10 km NE near the Spanish town of Pamplona (pop. 198.000) in the southern foothills of the Pyrenees.
Due to its shallow depth and vicinity to habitations, the tremor was felt by many people, most of whom were still in their beds.
The quake's shaking was mostly perceived as a short and light vibration that lasted less than 5 seconds. One user reported that the vibration induced by the quake made glasses "sing", i.e. presumably as the frequency of the quake's vibration hit the resonance frequency of glasses.
No damage should have occurred from this quake.

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Earthquake data

Date & time: Aug 30, 2020 05:57:57 UTC
Local time at epicenter: 30 Aug 07:57:57 am
Magnitude: 4
Depth: 10.0 km
Epicenter latitude / longitude: 42.8478°N / 1.4878°W (Navarra, Navarra, Spain)
Antipode: 42.848°S / 178.512°E
Nearby towns and cities:
6 km (4 mi) NNW of Lizoain (Navarra) (pop: 300) --> See nearby quakes!
10 km (6 mi) ENE of Sarriguren (Navarra) (pop: 14,800) --> See nearby quakes!
11 km (7 mi) ENE of Burlata (Navarra) (pop: 18,200) --> See nearby quakes!
13 km (8 mi) ENE of Pamplona (Navarra) (pop: 198,500) --> See nearby quakes!
13 km (8 mi) ENE of Segundo Ensanche (Navarra) (pop: 22,500) --> See nearby quakes!
13 km (8 mi) ENE of Segundo Ensanche (pop: 22,500) --> See nearby quakes!
15 km (9 mi) ENE of Iturrama (Navarre) (pop: 24,800) --> See nearby quakes!
15 km (9 mi) ENE of Ermitagaña (Navarre) (pop: 17,200) --> See nearby quakes!
16 km (10 mi) ENE of Barañain (pop: 22,100) --> See nearby quakes!
327 km (203 mi) NNE of Madrid (pop: 3,255,900) --> See nearby quakes!
Primary data source: IGN (Instituto Geográfico Nacional)
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
4.010 km9 km ENE of Pamplona (Spain)IGN
3.72 kmPyrenees (Spain)EMSC
3.811 kmPYRENEES - 34km De Pau (France)RENASS
3.72 kmSanguesa / Spanien (Spain)ZAMG

User reports for this quake (16)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Huarte-Uharte, Navarre, Navarre (8.6 km WSW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s : He sentido la oscilación del edificio y después la de la cama por efecto de la anterior. La estantería del baño ha tocado contra la pared. Mi hija de 4 años sigue dormida, no se ha enterado. | One user found this interesting.  
Huarte-Uharte, Navarre, Navarre (8.2 km WSW of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s
Villava (10.3 km W of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 5-10 s
Ardanaz de izagaondoa (13.7 km SSE of epicenter) [Map] / Light shaking (MMI IV)
Pamplona (14.2 km WSW of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s
Orcoyen, Navarre, Navarre (17.2 km W of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s
Pamplona / Light shaking (MMI IV) : We were on sofa so it was moving, so glass ware were chanting. Kids were not scared at all. | 3 users found this interesting.  
  • So the vibration was about the resonance frequency of the glasses to make them "sing"!
Pamplona / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : I fealt it. 05:57 | One user found this interesting.  
Aizoáin / Moderate shaking (MMI V) / 1-2 s : I was woken by the shaking, my roof shook and rumbled.  
Rochapea / not felt : I slept through it.  
Pamplona / not felt : I’m pretty sure I slept right through it.  
Valle de Egüés / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Pamplona / Light shaking (MMI IV) / 1-2 s
Valle de Egüés / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Gorraiz / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Pamplona / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
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