Earthquake with magnitude of ML 2.0 on date 30-03-2023 and time 02:18:04 (UTC) in region Capriata d'Orba (AL)

A magnitude ML 2.0 earthquake occured in region: Capriata d'Orba (AL), on

  • 30-03-2023 02:18:04 (UTC)
  • 30-03-2023 04:18:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.7330, 8.6850 at 50 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Capriata d'Orba AL 1 1904 1904
Predosa AL 3 2048 3952
Francavilla Bisio AL 4 531 4483
Basaluzzo AL 4 2087 6570
Silvano d'Orba AL 5 1988 8558
Castelletto d'Orba AL 5 2047 10605
Fresonara AL 6 731 11336
Pasturana AL 6 1318 12654
Tassarolo AL 7 672 13326
San Cristoforo AL 7 608 13934
Rocca Grimalda AL 7 1512 15446
Montaldeo AL 8 265 15711
Carpeneto AL 9 977 16688
Novi Ligure AL 9 28154 44842
Parodi Ligure AL 9 715 45557
Montaldo Bormida AL 9 664 46221
Bosco Marengo AL 10 2457 48678
Pozzolo Formigaro AL 10 4775 53453
Tagliolo Monferrato AL 10 1581 55034
Sezzadio AL 11 1246 56280
Orsara Bormida AL 11 424 56704
Gavi AL 11 4614 61318
Rivalta Bormida AL 11 1446 62764
Trisobbio AL 11 655 63419
Ovada AL 11 11477 74896
Castelnuovo Bormida AL 11 694 75590
Lerma AL 11 869 76459
Castelspina AL 11 416 76875
Casaleggio Boiro AL 12 372 77247
Mornese AL 12 737 77984
Frugarolo AL 12 1968 79952
Belforte Monferrato AL 12 515 80467
Casal Cermelli AL 13 1234 81701
Cassine AL 13 2961 84662
Bosio AL 13 1227 85889
Morsasco AL 13 679 86568
Cremolino AL 13 1086 87654
Strevi AL 13 2019 89673
Serravalle Scrivia AL 14 6128 95801
Molare AL 14 2181 97982
Gamalero AL 14 844 98826
Carrosio AL 14 510 99336
Prasco AL 14 521 99857
Stazzano AL 15 2486 102343
Cassano Spinola AL 15 1731 104074
Castellazzo Bormida AL 15 4570 108644
Frascaro AL 16 440 109084
Borgoratto Alessandrino AL 16 584 109668
Visone AL 16 1194 110862
Maranzana AT 17 277 111139
Villalvernia AL 17 955 112094
Vignole Borbera AL 17 2182 114276
Gavazzana AL 17 180 114456
Arquata Scrivia AL 17 6409 120865
Ricaldone AL 17 684 121549
Cassinelle AL 17 914 122463
Voltaggio AL 18 738 123201
Sardigliano AL 18 406 123607
Acqui Terme AL 18 19896 143503
Alice Bel Colle AL 18 766 144269
Quaranti AT 19 183 144452
Rossiglione GE 19 2779 147231
Carezzano AL 19 431 147662
Paderna AL 19 220 147882
Spineto Scrivia AL 19 337 148219
Grognardo AL 19 259 148478
Mombaruzzo AT 19 1117 149595
Sant'Agata Fossili AL 20 425 150020
Carbonara Scrivia AL 20 1122 151142
Morbello AL 20 402 151544
Castelletto Molina AT 20 180 151724

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km S of Alessandria (93943 inhabitants)
41 Km NW of Genova (586655 inhabitants)
42 Km E of Asti (76202 inhabitants)
50 Km NE of Savona (61345 inhabitants)
63 Km SW of Pavia (72576 inhabitants)
67 Km S of Vigevano (63310 inhabitants)
80 Km S of Novara (104380 inhabitants)
84 Km E of Moncalieri (57294 inhabitants)
87 Km W of Piacenza (102191 inhabitants)
88 Km E of Torino (890529 inhabitants)
91 Km SW of Milano (1345851 inhabitants)
93 Km SW of Rho (50434 inhabitants)
97 Km E of Cuneo (56081 inhabitants)
98 Km S of Legnano (60262 inhabitants)
99 Km S of Busto Arsizio (83106 inhabitants)
99 Km SW of Sesto San Giovanni (81608 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 2.0 2023-03-30
02:18:04
44.7332 8.6847 50 2024-03-01
17:18:03
Bollettino Sismico Italiano INGV 116457751
Reviewed
Rev100
ML 2.1 2023-03-30
02:18:04
44.7183 8.6912 50 2023-03-30
02:27:51
Sala Sismica INGV-Roma 115872161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-30 02:18:04 ± 0.12
Latitude 44.7332 ± 0.0081
Longitude 8.6847 ± 0.0101
Depth (km) 50 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116457751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 817
Semi-minor axis of confidence ellipse (meter) 489
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 318
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.21044
Epicentral distance of station farthest from the epicenter (degree) 2.53879
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 115872161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-30 02:27:51

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 116457751
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-17 13:12:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.ZIAN.EHZ. 2023-03-30T02:18:50.64 0.6 undecidable manual P 52 281.8068 93 7.11 0
ST.DOSS.HHZ. 2023-03-30T02:18:37.44 0.6 undecidable manual P 56 233.1888 94 -0.05 26
IV.MABI.HHZ. 2023-03-30T02:18:34.00 0.6 undecidable manual P 44 204.4398 94 0.07 32
ST.RONC.EHZ. 2023-03-30T02:18:34.25 0.3 undecidable manual P 47 204.8394 94 0.28 45
4P.IT02A.HHE. 2023-03-30T02:18:32.82 0.6 undecidable manual S 346 101.8203 101 -0.88 35
GU.RORO.HHZ. 2023-03-30T02:18:29.56 0.6 undecidable manual S 216 84.4488 105 -0.5 43
4P.IT05A.HHZ. 2023-03-30T02:18:29.48 0.6 undecidable manual P 30 168.2094 96 0.05 38
GU.REMY.HHE. 2023-03-30T02:18:29.08 0.6 undecidable manual P 316 170.9955 95 -0.7 31
IV.MDI.HHZ. 2023-03-30T02:18:26.08 0.6 undecidable manual P 35 140.3484 97 0.09 42
GU.CANO.HHZ. 2023-03-30T02:18:26.58 0.6 undecidable manual S 211 68.1762 112 -0.16 48
CH.MUGIO.HHZ. 2023-03-30T02:18:25.01 0.3 undecidable manual P 12 134.7651 98 -0.29 62
GU.STV.HHN. 2023-03-30T02:18:24.30 0.6 undecidable manual P 244 120.3906 99 0.78 37
GU.BHB.HHZ. 2023-03-30T02:18:23.21 0.6 undecidable manual P 276 112.4985 100 0.65 40
GU.ENR.HHZ. 2023-03-30T02:18:23.32 0.6 undecidable manual P 241 114.7962 100 0.49 42
FR.SAOF.HHE.00 2023-03-30T02:18:23.96 0.6 undecidable manual P 228 122.1888 99 0.22 43
IV.QLNO.HHZ. 2023-03-30T02:18:23.64 0.6 undecidable manual S 211 52.7028 121 -0.09 50
GU.IMI.HHZ. 2023-03-30T02:18:22.34 0.6 undecidable manual P 215 110.8002 100 -0.01 46
GU.GORR.HHZ. 2023-03-30T02:18:22.68 0.3 undecidable manual S 106 49.9167 123 -0.55 71
4P.IT02A.HHE. 2023-03-30T02:18:21.05 0.3 undecidable manual P 346 101.8203 101 -0.21 67
IT.GNV.HGE. 2023-03-30T02:18:21.30 0.6 undecidable manual S 150 38.7279 132 -0.01 52
GU.TRAV.HHZ. 2023-03-30T02:18:21.84 0.6 undecidable manual P 320 113.3976 100 -0.83 35
GU.ROTM.HHZ. 2023-03-30T02:18:20.52 0.6 undecidable manual S 296 29.1486 142 0.61 46
GU.RNCA.HHZ. 2023-03-30T02:18:20.59 0.6 undecidable manual S 144 35.9418 135 -0.28 51
GU.GBOS.HHZ. 2023-03-30T02:18:19.49 0.6 undecidable manual P 231 86.247 105 0.12 47
GU.PCP.HHZ. 2023-03-30T02:18:18.33 0.6 undecidable manual S 207 23.9538 148 -0.93 41
GU.RORO.HHZ. 2023-03-30T02:18:18.94 0.3 undecidable manual P 216 84.4488 105 -0.21 69
GU.CANO.HHZ. 2023-03-30T02:18:17.26 0.3 undecidable manual P 211 68.1762 112 0.03 75
IV.BOB.HHE. 2023-03-30T02:18:16.82 0.6 undecidable manual P 86 60.2952 116 0.5 45
GU.GORR.HHZ. 2023-03-30T02:18:15.26 0.3 undecidable manual P 106 49.9167 123 0.05 76
IV.QLNO.HHZ. 2023-03-30T02:18:15.85 0.3 undecidable manual P 211 52.7028 121 0.36 72
GU.GENL.EHE. 2023-03-30T02:18:14.88 0.6 undecidable manual P 148 42.7239 129 0.4 48
IV.SARZ.HHE. 2023-03-30T02:18:13.13 0.3 undecidable manual P 50 23.3544 149 0.25 77
IT.GNV.HGE. 2023-03-30T02:18:13.97 0.6 undecidable manual P 150 38.7279 132 -0.13 52
GU.ROTM.HHZ. 2023-03-30T02:18:13.64 0.1 positive manual P 296 29.1486 142 0.35 100
GU.RNCA.HHZ. 2023-03-30T02:18:13.92 0.3 undecidable manual P 144 35.9418 135 0.08 78
GU.PCP.HHZ. 2023-03-30T02:18:12.60 0.3 undecidable manual P 207 23.9538 148 -0.32 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PCP.HHE. ML:1.8 0.000152061395 0.1792 AML other m 2023-03-30T02:18:18.59
GU.PCP.HHN. ML:1.8 0.00014015 0.12 AML other m 2023-03-30T02:18:18.54
GU.RNCA.HHN. ML:1.9 0.00014845 1.74 AML other m 2023-03-30T02:18:20.00
GU.RNCA.HHE. ML:2.2 0.0003 0.12 AML other m 2023-03-30T02:18:22.80
GU.GORR.HHN. ML:2.2 0.0002515 0.28 AML other m 2023-03-30T02:18:23.23
GU.GORR.HHE. ML:2.0 0.000167 0.26 AML other m 2023-03-30T02:18:23.41
IV.QLNO.HHN. ML:1.6 0.000068342705 0.1808 AML other m 2023-03-30T02:18:24.06
IV.QLNO.HHE. ML:2.0 0.000147288725 0.2 AML other m 2023-03-30T02:18:24.11
GU.CANO.HHE. ML:2.2 0.00019155519999999998 0.2608 AML other m 2023-03-30T02:18:27.12
GU.CANO.HHN. ML:2.0 0.00013700000000000002 0.22 AML other m 2023-03-30T02:18:27.44
SI.LUSI.HHE. ML:2.3 0.00004595 0.14 AML other m 2023-03-30T02:18:59.17
SI.LUSI.HHN. ML:2.7 0.000115 0.16 AML other m 2023-03-30T02:18:59.10
GU.ROTM.HHE. ML:2.3 0.0004092355 0.16 AML other m 2023-03-30T02:18:21.11
GU.ROTM.HHN. ML:2.4 0.0005179595 0.1584 AML other m 2023-03-30T02:18:20.88
GU.RORO.HHN. ML:1.5 0.00003390497 0.1792 AML other m 2023-03-30T02:18:31.67
GU.RORO.HHE. ML:1.6 0.000037813923 0.2 AML other m 2023-03-30T02:18:31.72
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
Waveforms Seismic signals in miniseed + resp format Download