Strong Mag. 5.9 Earthquake - 31 km Northwest of Larisa, Nomos Larisis, Thessaly, Greece, on Thursday, Mar 4, 2021 at 8:38 pm (GMT +2)

Strong mag. 5.9 earthquake - 16 Km SSW From Elassona, Greece, on Thursday, 4 March 2021 at 18:38 (GMT) - information

This quake was likely an aftershock of the 6.0 quake 22 km northwest of Larisa, Nomos Larisis, Thessaly, Greece, Mar 3, 2021 12:16 pm (GMT +2), which had occurred 1 day 8 hours earlier.

Strong mag. 5.9 earthquake - 31 km northwest of Larisa, Nomos Larisis, Thessaly, Greece, on Thursday, Mar 4, 2021 at 8:38 pm (GMT +2)

Strong magnitude 5.9 earthquake at 11 km depth

4 Mar 18:40 UTC: First to report: GFZ after 2 minutes.
4 Mar 18:41: Magnitude recalculated from 6.0 to 6.2. Epicenter location corrected by 2.8 km (1.7 mi) towards SW.
... [show all] ...
4 Mar 18:53: Magnitude recalculated from 5.8 to 5.9. Hypocenter depth recalculated from 10.0 to 11.3 km (from 6.2 to 7 mi). Epicenter location corrected by 1.2 km (0.7 mi) towards E.

Update Thu, 4 Mar 2021, 21:03

Surprise Larisa quake was a "twin" of an earlier one from the day before!

Authorities in Greece are calling Thursday evening's quake, which occurred at .8.38 pm local time, a "surprise earthquake" as it is as strong as the main earthquake that occurred the day before. Usually aftershocks are less intense than the main event, however one of the country's most notable geologists, Efthimios Lekkas, said that another part of the fault line had become activated. Luckily, this occurred far from densely populated areas. Lekkas is still hesitant to say this latest quake can be characterized as an actual aftershock.

Another noteworthy geologist, Vasilis Karakostas, was quoted on local television saying that the fault seems to be spreading westwards, activating a new fault line apart from that of yesterday's 5.2 magnitude quake.

VolcanoDiscovery user reports poured in from three different countries, namely Greece, North Macedonia and Albania. There were reports of different levels of shaking in the Greek cities of Volos, Katerini and Kozani, with reports of strong shaking in Larisa, Thessaloniki and Veria which are relatively close to the epicenter. Ohrid in North Macedonia also felt moderate shaking according to one filed report.

Update Thu, 4 Mar 2021, 18:45

Magnitude 6.2 earthquake strikes near Larissa, Lárisa, Thessaly, Greece

6.2 quake 4 Mar 8:38 pm (GMT +2)

A magnitude 6.2 earthquake near Larissa, Lárisa, Thessaly, Greece, was reported only 7 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 in the evening on Thursday 4 March 2021 at 8:38 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.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 6.0 earthquake.
Based on the preliminary seismic data, the quake should have been felt by everybody in the area of the epicenter. In those areas, dangerous ground shaking occurred with the potential to inflict moderate to heavy damage to buildings and other infrastructure.
Towns or cities where the quake likely caused strong ground shaking include
Moderate shaking probably occurred in Larissa (pop. 144,700) located 29 km from the epicenter, Trikala (pop. 61,700) 43 km away, Karditsa (pop. 32,800) 53 km away, and Katerini (pop. 53,300) 60 km away.
In Véroia (pop. 44,500) located 81 km from the epicenter, Nea Ionia (pop. 32,700) 81 km away, Volos (pop. 86,000) 83 km away, and Thessaloniki (pop. 354,300) 114 km away, the quake should have been felt as light shaking.
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.

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Earthquake data

Date & time: Mar 4, 2021 18:38:19 UTC -
Local time at epicenter: Thursday, Mar 4, 2021 at 8:38 pm (GMT +2)
Magnitude: 5.9
Depth: 11.3 km
Epicenter latitude / longitude: 39.771°N / 22.0958°E

(Nomos Larisis, Thessaly, Greece)
Antipode: 39.771°S / 157.904°W
Nearest volcano: Sousaki (221 km / 137 mi)
Nearby towns and cities:
16 km (10 mi) SSW of Elassona (pop: 7,060) --> See nearby quakes!
31 km (19 mi) WNW of Larisa (Thessalie) (pop: 144,700) --> See nearby quakes!
37 km (23 mi) NE of Trikala (Thessalien) (pop: 61,700) --> See nearby quakes!
48 km (30 mi) NNE of Karditsa (pop: 32,800) --> See nearby quakes!
66 km (41 mi) SSW of Katerini (Central Macedonia) (pop: 53,300) --> See nearby quakes!
84 km (52 mi) WNW of Nea Ionia (Magnesia) (pop: 32,700) --> See nearby quakes!
86 km (53 mi) WNW of Volos (Thessalien) (pop: 86,000) --> See nearby quakes!
120 km (75 mi) SW of Thessaloniki (Central Macedonia) (pop: 354,300) --> See nearby quakes!
244 km (152 mi) NW of Athens (Attica) (pop: 664,000) --> See nearby quakes!
259 km (161 mi) SE of Tirana (Albania) (pop: 374,800) --> See nearby quakes!

Weather at epicenter at time of quake:
Clear Sky

12°C (54 F), humidity: 50%, wind: 1 m/s (1 kts) from WNW

Primary data source: NOA (National Observatory of Athens)
Estimated released energy: 4.5 x 10¹³ joules (12.4 gigawatt hours, equivalent to 10676 tons of TNT or 0.7 atomic bombs!) | 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.	Depth	Location	Source
5.9	11 km	16 Km SSW From Elassona, Greece	NOA
5.7	11 km	GREECE	EMSC
6.3	10 km	Greece	GFZ
5.8	10 km	13 Km W of Týrnavos, Greece	USGS
5.5	10 km	1048 Km NW of Marsa Matruh, Greece	ENSN
5.5	8.7 km	Greece	GeoAu
5.9	11 km	Greece	INGV
5.7	11 km	Mesokhorion / Griechenland, Greece	ZAMG
6.1	10 km	Greece	NIEP

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User reports for this quake (290)

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

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Skopje, Macedonia (253 km NNW of epicenter) [Map] / not felt : I didn't felt anything it's weird how some people in my city felt it but I live in house not in some building and high flat | 6 users found this interesting. (reported through our app)

Struga. North Macedonia / Strong shaking (MMI VI) / single lateral shake : Feel in Struga North Macedonia and he is strong | 8 users found this interesting.

Nea Roda, Chalkidikí, Central Macedonia (169.4 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging : Staiing in the Campingcar, it was swinging first less then more then less. The Shakals in the Area reakting direct, our Dogs not, same yesterday. | 5 users found this interesting. (reported through our app)

Interesting, thanks! #animals

Tirana Albania / Weak shaking (MMI III) / 2-5 s : I felt it vibrate my sofa back and forth The water in the water cooler sloshed around pretty good Took a while to settle down | 4 users found this interesting.

Skopje, Macedonia / Very weak shaking (MMI II) / horizontal (sideways) swinging / 5-10 s : It was shaking longer and horizontal. I was lying in bed and hardly felt it, it was really weak shakr | 4 users found this interesting.

Corfu - Aghios Markos (194.8 km W of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging : I have a vertical book stand. It was moving backwards and forwards for about 2-3 minutes as were curtains.. | 3 users found this interesting.

Sarandë, Albania / Weak shaking (MMI III) / 10-15 s : Sitting on couch. Was a rolling feeling?? | 5 users found this interesting.

Saranda, Albania / Moderate shaking (MMI V) / 10-15 s : Shorter and stronger than the March 3 quake | 5 users found this interesting.

Agia Paraskevi Athens / Moderate shaking (MMI V) / 2-5 s : Was working on the computer, felt the chair and the table moving back and forth | 5 users found this interesting.

Rodotopi, Ioannina, Epirus (115.9 km W of epicenter) [Map] / Moderate shaking (MMI V) : I was in my car and the whole car shook for atleast 1 min 90 sec | 4 users found this interesting.

Manchester UK / not felt / rattling, vibrating : Glass vibrating in kitchen cupboard for around a minute? Noticed the noise and wondered what it was as have never experienced before | 3 users found this interesting.

Thessaloniki Greece / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s : I live in an apartment on the sixth floor (last one). The shaking was light possibly due to the height. The phenomenon lasted long. (20-30 seconds) | 3 users found this interesting.

Ohrid (187.4 km NW of epicenter) [Map] / Moderate shaking (MMI V) / 10-15 s : In the 5th story of our apartment in Ohrid. Lanterns and fruit baskets were shaking and lost footing. | 2 users found this interesting.

Macedonia, Skopje / Weak shaking (MMI III) : Weak but long enough felt in Skopje, Macedonia | 4 users found this interesting.

Skopje / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s : I felt dizzy, could not stand up. | 4 users found this interesting.

Trnava, Tirana District (259.5 km NW of epicenter) [Map] / Light shaking (MMI IV) / 10-15 s : Chandeliers swinging left and right. Scaring!!! | 3 users found this interesting. (reported through our app)

Safija, Sofia-Capital (340.9 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 5-10 s : Very week shaking from side to side (felt on the 18 floor) | 3 users found this interesting.

Sarajevo / Very weak shaking (MMI II) / 2-5 s : Felt in Sarajevo on 7th floor of the building. | 3 users found this interesting.

Vlore / Light shaking (MMI IV) / 15-20 s : Felt stronger than the one from yesterday. | 3 users found this interesting.

Leptokarya / Moderate shaking (MMI V) / both vertical and horizontal swinging / 15-20 s : omg you could hear window glass and feel the house movement | 3 users found this interesting.

Elbasan, Albania / Light shaking (MMI IV) / 5-10 s : The Greece earthquake we notice here in Elbadan Albania | 3 users found this interesting.

Tirana, Albania / Weak shaking (MMI III) / horizontal (sideways) swinging : Swaying from side to side 5th floor | 3 users found this interesting.

Néa Malgara, Thessaloniki, Central Macedonia (106 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s : A light to moderate shaking. Felt it on my sofa. Horizontal shaking. 115 km NE from epicenter. | 2 users found this interesting.

Peraia (107.9 km NE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Felt it indoors in Peraia, close to the seaside. | 2 users found this interesting.

Sarajevo, Bosnia (531.8 km NW of epicenter) [Map] / Weak shaking (MMI III) : 16th floor, weak shaking in Sarajevo Bosnia | 2 users found this interesting.

Nafpaktos (155 km S of epicenter) [Map] / Weak shaking (MMI III) / 15-20 s : Τον καταλάβαμε μέχρι εδώ!! | 2 users found this interesting. (reported through our app)

macedonia, bitola / Weak shaking (MMI III) : если лежишь на кровати, то сильно трясануло. мы в 200 км от эпицентра. вода в графине и стакане вибрировала сильно. нахожусь на 6м этаже 7ми эта | One user found this interesting.

Korce,Albania earthquake 4 / Moderate shaking (MMI V) / horizontal (sideways) swinging / 5-10 s : Termet ne oren 7:38 lekundi fort pallatin ne menyre horizontale duke kercitur gjithe objektet dhe lekundje majtas-djathtas per 10-12sekonda. | One user found this interesting.

Thessaloniki / Weak shaking (MMI III) : It was felt aa the sofa I was sitting on shook a little (5th floor of a building) - made me jump up; It waa definitely felt stronger than the one yesterday midday | One user found this interesting.

Larissa (31.9 km ESE of epicenter) [Map] / Very strong shaking (MMI VII) / complex rolling (tilting in multiple directions) / 20-30 s : I was under my balcony picking up a bottle of water when the ground began shaking, so I rushed to the road trying to figure out which building is less likely to collapse. The whole thing lasted about 30" and came the next day after an even larger earthqua

Katerini, Pieria, Central Macedonia (69.4 km NNE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 5-10 s : Das Bett hat gewackelt als ob jemand daran rüttelt. Energien fliessen wellenartig. Lampen schaukeln. Alle Hunde bellen, spüren Gefahr.

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