Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 08-02-2023 and time 22:58:10 (Italy) in region 2 km SW Coazzolo (AT)

A magnitude ML 1.4 earthquake occured in region: 2 km SW Coazzolo (AT), on

  • 08-02-2023 21:58:10 (UTC)
  • 08-02-2023 22:58:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.7180, 8.1350 at 14 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Coazzolo AT 2 302 302
Neive CN 2 3405 3707
Neviglie CN 3 382 4089
Mango CN 4 1308 5397
Castagnole delle Lanze AT 4 3798 9195
Barbaresco CN 4 658 9853
Castiglione Tinella CN 5 895 10748
Treiso CN 5 820 11568
Trezzo Tinella CN 5 331 11899
Camo CN 5 201 12100
Cossano Belbo CN 7 958 13058
Magliano Alfieri CN 8 2153 15211
Santo Stefano Belbo CN 8 3984 19195
Calosso AT 8 1279 20474
Alba CN 8 31437 51911
Guarene CN 8 3596 55507
Costigliole d'Asti AT 9 5914 61421
Castagnito CN 9 2163 63584
Rocchetta Belbo CN 9 167 63751
Priocca CN 10 2017 65768
Benevello CN 10 474 66242
Govone CN 10 2203 68445
Castellinaldo d'Alba CN 10 938 69383
Borgomale CN 11 381 69764
Diano d'Alba CN 11 3570 73334
Loazzolo AT 11 359 73693
Rodello CN 11 980 74673
Cessole AT 12 403 75076
San Martino Alfieri AT 12 666 75742
Vesime AT 12 622 76364
Castino CN 12 483 76847
Vezza d'Alba CN 12 2287 79134
Canelli AT 12 10485 89619
Moasca AT 12 494 90113
Agliano Terme AT 12 1642 91755
Montelupo Albese CN 13 529 92284
Piobesi d'Alba CN 13 1288 93572
Bosia CN 13 177 93749
Lequio Berria CN 13 487 94236
Isola d'Asti AT 13 2071 96307
Roddi CN 13 1607 97914
San Marzano Oliveto AT 13 1047 98961
Cassinasco AT 14 611 99572
Grinzane Cavour CN 14 1995 101567
Corneliano d'Alba CN 14 2118 103685
Bubbio AT 14 893 104578
San Damiano d'Asti AT 14 8315 112893
Antignano AT 14 974 113867
Canale CN 14 5686 119553
Montegrosso d'Asti AT 14 2344 121897
Castelnuovo Calcea AT 14 759 122656
San Giorgio Scarampi AT 15 122 122778
Albaretto della Torre CN 15 242 123020
Perletto CN 15 292 123312
Arguello CN 15 199 123511
Vigliano d'Asti AT 15 835 124346
Monticello d'Alba CN 15 2292 126638
Celle Enomondo AT 16 484 127122
Cortemilia CN 16 2331 129453
Montaldo Scarampi AT 16 755 130208
Sinio CN 16 522 130730
Revigliasco d'Asti AT 16 767 131497
Cisterna d'Asti AT 16 1245 132742
Santa Vittoria d'Alba CN 16 2795 135537
Serralunga d'Alba CN 16 564 136101
Cravanzana CN 16 411 136512
Mongardino AT 16 921 137433
Castiglione Falletto CN 16 700 138133
Cerretto Langhe CN 16 442 138575
Calamandrana AT 16 1761 140336
Verduno CN 17 588 140924
Rocchetta Palafea AT 17 338 141262
Sessame AT 17 271 141533
Monastero Bormida AT 17 931 142464
Mombercelli AT 17 2259 144723
Olmo Gentile AT 17 80 144803
Torre Bormida CN 17 200 145003
Santo Stefano Roero CN 17 1390 146393
Montà CN 17 4733 151126
Monteu Roero CN 18 1634 152760
Roccaverano AT 18 399 153159
Montaldo Roero CN 18 844 154003
Vinchio AT 18 601 154604
Baldissero d'Alba CN 18 1069 155673
La Morra CN 18 2724 158397
Roddino CN 18 400 158797
Sommariva Perno CN 18 2797 161594
Serravalle Langhe CN 18 315 161909
Vaglio Serra AT 18 275 162184
Nizza Monferrato AT 19 10429 172613
Cissone CN 19 85 172698
Bergolo CN 19 71 172769
Barolo CN 19 740 173509
Feisoglio CN 19 316 173825
Tigliole AT 20 1699 175524
Pocapaglia CN 20 3339 178863
Bistagno AL 20 1887 180750
Castel Boglione AT 20 609 181359
Monforte d'Alba CN 20 2056 183415
Belveglio AT 20 350 183765
Levice CN 20 231 183996

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km S of Asti (76202 inhabitants)
44 Km W of Alessandria (93943 inhabitants)
47 Km SE of Moncalieri (57294 inhabitants)
53 Km NW of Savona (61345 inhabitants)
53 Km SE of Torino (890529 inhabitants)
59 Km NE of Cuneo (56081 inhabitants)
72 Km W of Genova (586655 inhabitants)
88 Km SW of Vigevano (63310 inhabitants)
90 Km SW of Novara (104380 inhabitants)
96 Km SW of Pavia (72576 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.4 2023-02-08
21:58:10		 44.7177 8.1353 14 2024-03-01
17:18:15		 Bollettino Sismico Italiano INGV 120586571
Reviewed
Rev100 		ML 1.4 2023-02-08
21:58:09		 44.7252 8.15 20 2023-02-08
22:59:16		 Sala Sismica INGV-Roma 114274191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-08 21:58:10 ± 0.09
Latitude 44.7177 ± 0.0045
Longitude 8.1353 ± 0.0063
Depth (km) 14 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 120586571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 520
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 347
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.20235
Epicentral distance of station farthest from the epicenter (degree) 0.91821
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 120586571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-29 12:19:01

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 114274191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-08 22:59:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PZZ.HHE. 2023-02-08T21:58:34.75 0.6 undecidable manual S 254 83.8494 92 -0.22 45
GU.STV.HHN. 2023-02-08T21:58:34.56 0.6 undecidable manual S 231 82.7505 92 -0.11 46
GU.MGRO.HHN. 2023-02-08T21:58:34.45 0.6 undecidable manual S 199 79.2651 93 0.72 39
GU.ENR.HHZ. 2023-02-08T21:58:33.56 0.6 undecidable manual S 227 78.4659 93 0.04 47
GU.BHB.HHE. 2023-02-08T21:58:30.23 0.6 undecidable manual S 281 69.8745 93 -1.02 35
GU.RORO.HHE. 2023-02-08T21:58:30.46 0.6 undecidable manual S 185 67.377 93 -0.1 47
GU.CANO.HHE. 2023-02-08T21:58:27.66 0.6 undecidable manual S 172 57.1983 94 -0.19 47
GU.GBOS.HHZ. 2023-02-08T21:58:27.94 0.3 undecidable manual S 204 57.7977 94 -0.07 73
4P.IT02A.HHN. 2023-02-08T21:58:27.66 0.3 undecidable manual P 10 101.9202 92 0.41 63
IV.QLNO.HHZ. 2023-02-08T21:58:25.04 0.3 undecidable manual S 159 46.7199 95 -0.03 74
GU.PZZ.HHE. 2023-02-08T21:58:24.45 0.3 undecidable manual P 254 83.8494 92 -0.01 70
GU.STV.HHN. 2023-02-08T21:58:24.78 0.3 undecidable manual P 231 82.7505 92 0.49 63
GU.MGRO.HHN. 2023-02-08T21:58:24.18 0.3 undecidable manual P 199 79.2651 93 0.43 65
GU.ENR.HHZ. 2023-02-08T21:58:23.91 0.3 undecidable manual P 227 78.4659 93 0.28 67
GU.RORO.HHE. 2023-02-08T21:58:22.06 0.3 undecidable manual P 185 67.377 93 0.14 71
GU.PCP.HHZ. 2023-02-08T21:58:22.34 0.3 undecidable manual S 121 37.8288 97 -0.37 70
GU.BHB.HHE. 2023-02-08T21:58:21.75 0.3 undecidable manual P 281 69.8745 93 -0.57 63
GU.CANO.HHE. 2023-02-08T21:58:20.39 0.3 undecidable manual P 172 57.1983 94 0.04 74
GU.GBOS.HHZ. 2023-02-08T21:58:20.55 0.3 undecidable manual P 204 57.7977 94 0.1 72
IV.QLNO.HHZ. 2023-02-08T21:58:18.89 0.3 undecidable manual P 159 46.7199 95 0.14 73
GU.ROTM.HHZ. 2023-02-08T21:58:18.86 0.3 undecidable manual S 49 22.4553 106 0.18 77
IV.MONC.HHN. 2023-02-08T21:58:18.18 0.3 undecidable manual P 338 42.7239 96 0.04 76
GU.PCP.HHZ. 2023-02-08T21:58:17.12 0.1 undecidable manual P 121 37.8288 97 -0.27 96
GU.ROTM.HHZ. 2023-02-08T21:58:14.89 0.1 undecidable manual P 49 22.4553 106 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ROTM.HHE. ML:1.9 0.00045165835 0.1664 AML other m 2023-02-08T21:58:19.26
GU.ROTM.HHN. ML:1.7 0.000306374 1.5008 AML other m 2023-02-08T21:58:23.87
IV.QLNO.HHE. ML:1.3 0.000050680305000000004 0.1024 AML other m 2023-02-08T21:58:25.14
GU.GBOS.HHE. ML:1.2 0.000027622135 0.6784 AML other m 2023-02-08T21:58:29.41
GU.GBOS.HHN. ML:1.1 0.000026404035 0.1152 AML other m 2023-02-08T21:58:29.16
GU.ENR.HHN. ML:1.4 0.00003390072 1.936 AML other m 2023-02-08T21:58:35.00
GU.ENR.HHE. ML:1.4 0.000037436585 0.064 AML other m 2023-02-08T21:58:35.78
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download