Quake Info: Moderate Mag. 4.8 Earthquake - 7.9 km West of Bolu, Turkey, on Thursday, Mar 16, 2023 at 1:55 pm (GMT +3)

Moderate magnitude 4.8 earthquake at 10 km depth

16 Mar 10:58 UTC: First to report: GFZ after 4 minutes.
16 Mar 11:01: Magnitude recalculated from 4.8 to 4.7. Epicenter location corrected by 11 km (6.9 mi) towards ENE.
... [show all] ...
16 Mar 11:26: Now using data updates from USGS

Update Thu, 16 Mar 2023, 11:12

Moderate earthquake of magnitude 4.7 just reported 13 km northeast of Bolu, Turkey

4.7 quake 13 km north of Bolu, Turkey, Mar 16, 2023 1:55 pm (GMT +3)

A magnitude 4.7 earthquake near Bolu, Turkey, was reported only 17 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at a shallow depth of 10 km beneath the epicenter around noon on Thursday, March 16th, 2023, at 1:55 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from Italy's National Institute of Geophysics and Volcanology (INGV) which listed the quake at magnitude 4.7 as well. Other agencies reporting the same quake include the Kandilli Oservatory and Earthquake Research Institute in Istanbul (KOERI-RETMC) at magnitude 4.7, and the citizen-seismograph network of RaspberryShake at magnitude 4.7.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Bolu (pop. 96,600) located 13 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Alaplı (pop. 20,900) located 43 km from the epicenter, Gerede (pop. 28,600) 47 km away, Devrek (pop. 24,600) 49 km away, Akçakoca (pop. 35,200) 51 km away, Ereğli (pop. 88,800) 52 km away, and Karasu Mahallesi (pop. 39,500) 76 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Karabuk (pop. 97,500) located 92 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online: Android | iOS

Earthquake details

Date & time	Mar 16, 2023 10:55:07 UTC -
Local time at epicenter	Thursday, Mar 16, 2023 at 1:55 pm (GMT +3)
Status	Confirmed
Magnitude	4.8
Depth	10.0 km
Epicenter latitude / longitude	40.7392°N / 31.5128°E (Bolu, Turkey)
Antipode	40.739°S / 148.487°W
Shaking intensity	Light shaking
Felt	14 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	8 km (5 mi) W of Bolu (pop: 96,600) \| Show on map \| Quakes nearby 51 km (32 mi) SE of Akçakoca (Düzce) (pop: 35,200) \| Show on map \| Quakes nearby 58 km (36 mi) W of Gerede (pop: 28,600) \| Show on map \| Quakes nearby 61 km (38 mi) S of Ereğli (Zonguldak) (pop: 88,800) \| Show on map \| Quakes nearby 83 km (51 mi) SSW of Zonguldak (pop: 100,200) \| Show on map \| Quakes nearby 94 km (58 mi) E of Sakarya (pop: 286,800) \| Show on map \| Quakes nearby 146 km (91 mi) NW of Ankara (pop: 3,517,200) \| Show on map \| Quakes nearby 146 km (91 mi) NW of Çankaya (Ankara) (pop: 792,200) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 6.7°C (44 F), humidity: 89%, wind: 2 m/s (3 kts) from WNW
Estimated seismic energy released	1 x 10¹² joules (278 megawatt hours, equivalent to 239 tons of TNT) \| about seismic energy

Show interactive Map

[smaller] [bigger]

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.	Depth	Location	Source
4.8	10 km	Western Turkey	USGS
4.8	10 km	Turkey	RaspberryShake
4.7	9.6 km	Turkey: KIZILAGIL-(BOLU)	KOERI-RETMC
4.7	9.8 km	Turkey	INGV
4.7	10 km	WESTERN TURKEY	EMSC
4.6	10 km	Turkey	GFZ
4.8	10 km	Turkey	IRIS
4.7	10 km	Turkey: Yigilca / Türkei	ZAMG

Most recent quakes Top 20 past 24 hrs Quakes in Turkey

User reports for this quake (21)

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

Contribute:
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!

Translate

İstanbul (243.1 km W of epicenter) [Map] / Weak shaking (MMI III) : It lasted for 2 seconds only and I wanted to go under the desk but it stopped | 2 users found this interesting.

Bahçelievler / Strong shaking (MMI VI) / both vertical and horizontal swinging / 20-30 s : Uww cok korktum dena salladi | 2 users found this interesting. (reported through our app)

DUZCE / Light shaking (MMI IV) / single vertical bump / 2-5 s : 2 bumps chandalier still shaking 30 mins later | 2 users found this interesting.

Sipahi / not felt : Nothing felt | One user found this interesting. (reported through our app)

Izmit, Kocaeli (131.8 km W of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : weak shaking | One user found this interesting.

Eskisehir (135.8 km SW of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s (reported through our app)

Kullar, Kocaeli (128.1 km W of epicenter) [Map] / not felt (reported through our app)

Maltepe, Istanbul (199.5 km W of epicenter) [Map] / not felt (reported through our app)

Istanbul (219.7 km W of epicenter) [Map] / not felt (reported through our app)

çatalmeşe (193.9 km W of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s

Eskisehir (134 km SW of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)

Zonguldak / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s

Pendik, Istanbul / Light shaking (MMI IV) / 5-10 s

Ümraniye / not felt (reported through our app)

Pendik, Istanbul / Light shaking (MMI IV) / 5-10 s

Bolu / not felt / rattling, vibrating / 5-10 s

İstanbul / Light shaking (MMI IV) / rattling, vibrating / very short

Istanbul / Weak shaking (MMI III) / horizontal (sideways) swinging

Ankara, Beytepe mahallesi / Weak shaking (MMI III) / single vertical bump / 2-5 s (reported through our app)

Alanya / not felt (reported through our app)

Zonguldak / Light shaking (MMI IV) / single lateral shake / 15-20 s (reported through our app)

Earlier earthquakes in the same area

Click here to search our database for earlier earthquakes in the same area since 1900!

Most recent quakes Top 20 past 24 hrs Quakes in Turkey

Moderate mag. 4.8 earthquake - 7.9 km west of Bolu, Turkey, on Thursday, Mar 16, 2023 at 1:55 pm (GMT +3) -

Moderate magnitude 4.8 earthquake at 10 km depth

Moderate earthquake of magnitude 4.7 just reported 13 km northeast of Bolu, Turkey

Earthquake details

Data for the same earthquake reported by different agencies

User reports for this quake (21)

Earlier earthquakes in the same area

Support us - Help us upgrade our services!

Moderate mag. 4.8 earthquake - 7.9 km west of Bolu, Turkey, on Thursday, Mar 16, 2023 at 1:55 pm (GMT +3) - writeAge(1678964107)

Moderate magnitude 4.8 earthquake at 10 km depth

Moderate earthquake of magnitude 4.7 just reported 13 km northeast of Bolu, Turkey

Earthquake details

Data for the same earthquake reported by different agencies

User reports for this quake (21)

Earlier earthquakes in the same area

Support us - Help us upgrade our services!

Moderate mag. 4.8 earthquake - 7.9 km west of Bolu, Turkey, on Thursday, Mar 16, 2023 at 1:55 pm (GMT +3) -