Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 01-02-2023 and time 14:10:31 (UTC) in region 4 km W Bolognola (MC)

A magnitude ML 1.5 earthquake occured in region: 4 km W Bolognola (MC), on

  • 01-02-2023 14:10:31 (UTC)
  • 01-02-2023 15:10:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9850, 13.1840 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
Bolognola MC 4 142 142
Acquacanina MC 5 121 263
Ussita MC 6 444 707
Fiastra MC 6 559 1266
Fiordimonte MC 10 202 1468
Visso MC 10 1107 2575
Castelsantangelo sul Nera MC 10 281 2856
Sarnano MC 11 3264 6120
Pievebovigliana MC 12 866 6986
Pieve Torina MC 13 1458 8444
Montefortino FM 14 1178 9622
Amandola FM 14 3629 13251
Monte Cavallo MC 15 145 13396
Montemonaco AP 15 604 14000
Cessapalombo MC 15 512 14512
Gualdo MC 16 815 15327
Muccia MC 16 915 16242
Preci PG 17 724 16966
Caldarola MC 18 1823 18789
San Ginesio MC 18 3498 22287
Camporotondo di Fiastrone MC 18 563 22850
Comunanza AP 19 3166 26016
Camerino MC 19 6974 32990
Montegallo AP 20 523 33513

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
64 Km NE of Terni (111501 inhabitants)
66 Km E of Perugia (166134 inhabitants)
73 Km N of L'Aquila (69753 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
95 Km NW of Montesilvano (53738 inhabitants)
97 Km S of Fano (60888 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 1.5 2023-02-01
14:10:31		 42.985 13.1838 15 2024-03-01
17:18:10		 Bollettino Sismico Italiano INGV 118144101
Reviewed
Rev100 		ML 1.6 2023-02-01
14:10:31		 42.9848 13.1862 14 2023-02-01
14:30:48		 Sala Sismica INGV-Roma 113960881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-01 14:10:31 ± 0.06
Latitude 42.9850 ± 0.0027
Longitude 13.1838 ± 0.0037
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118144101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 329
Semi-minor axis of confidence ellipse (meter) 85
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 69
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.07374
Epicentral distance of station farthest from the epicenter (degree) 0.72485
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 37
Type of magnitude ML
Reference to an origin 118144101
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-06 06:11:16

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 113960881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-01 14:30:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2023-02-01T14:10:55.34 0.3 undecidable manual S 320 80.4639 93 -0.42 61
IV.CING.HNZ. 2023-02-01T14:10:46.30 0.6 undecidable manual S 1 43.3233 96 0.44 43
IV.LNSS.HNZ. 2023-02-01T14:10:46.23 0.6 undecidable manual S 195 43.9227 96 0.2 45
IV.PIEI.HHZ. 2023-02-01T14:10:45.41 0.3 undecidable manual P 320 80.4639 93 -0.22 64
IV.SMA1.EHZ. 2023-02-01T14:10:45.61 0.6 undecidable manual S 163 41.2254 97 0.31 45
IV.SNTG.HHZ. 2023-02-01T14:10:44.34 0.6 undecidable manual S 327 35.8419 99 0.46 43
IV.RM33.EHZ. 2023-02-01T14:10:41.54 0.3 undecidable manual P 177 52.9026 95 0.16 67
IV.CESI.HHZ. 2023-02-01T14:10:40.88 0.3 undecidable manual S 276 22.755 108 0.41 67
IV.MF5.EHZ. 2023-02-01T14:10:40.83 0.3 undecidable manual S 89 22.3554 108 0.45 68
IV.ATCC.EHZ. 2023-02-01T14:10:40.86 0.6 undecidable manual P 297 49.3173 95 0.02 46
IV.CING.HNZ. 2023-02-01T14:10:40.03 0.6 undecidable manual P 1 43.3233 96 0.12 46
IV.MML1.HNE. 2023-02-01T14:10:40.41 0.6 undecidable manual S 310 22.3554 108 0.05 48
IV.SAP2.EHZ. 2023-02-01T14:10:40.48 0.6 undecidable manual S 55 21.3675 109 0.35 46
IV.SMA1.EHZ. 2023-02-01T14:10:39.61 0.6 undecidable manual P 163 41.2254 97 0.02 47
IV.NRCA.HHZ. 2023-02-01T14:10:39.03 0.3 undecidable manual S 199 17.7711 116 -0.19 72
IV.LNSS.HNZ. 2023-02-01T14:10:39.79 0.3 undecidable manual P 195 43.9227 96 -0.22 68
IV.SNTG.HHZ. 2023-02-01T14:10:38.72 0.3 undecidable manual P 327 35.8419 99 -0.05 72
IV.MMO1.EHZ. 2023-02-01T14:10:38.41 0.3 undecidable manual S 129 14.9739 122 -0.17 71
IV.GUMA.HHZ. 2023-02-01T14:10:38.96 0.6 undecidable manual S 55 14.9739 122 0.38 46
7F.SIB1.EHZ. 2023-02-01T14:10:38.06 0.3 undecidable manual S 145 12.1767 130 0.08 74
IT.MTCL.HGN. 2023-02-01T14:10:38.73 0.3 undecidable manual S 274 14.9739 122 0.15 72
7F.SIB2.EHN. 2023-02-01T14:10:38.08 0.3 undecidable manual S 137 14.2746 124 -0.34 69
IV.PF6.EHZ. 2023-02-01T14:10:38.66 0.6 undecidable manual S 3 16.9719 117 -0.38 46
7F.SIB3.EHN. 2023-02-01T14:10:38.13 0.3 undecidable manual S 150 14.0748 125 -0.25 71
IV.FEMA.HNN. 2023-02-01T14:10:38.16 0.6 undecidable manual S 257 11.1777 133 0.39 46
IV.CSP1.EHZ. 2023-02-01T14:10:37.76 0.3 undecidable manual S 8 11.9769 131 -0.17 72
IV.FDMO.HHZ. 2023-02-01T14:10:37.39 0.3 undecidable manual S 306 9.6792 138 -0.11 74
IV.MC2.EHZ. 2023-02-01T14:10:37.60 0.3 undecidable manual S 177 8.1807 144 0.36 71
IV.NRCA.HHZ. 2023-02-01T14:10:36.02 0.1 undecidable manual P 199 17.7711 116 -0.06 98
IV.MML1.HNE. 2023-02-01T14:10:36.67 0.3 undecidable manual P 310 22.3554 108 -0.07 73
IV.SAP2.EHZ. 2023-02-01T14:10:36.60 0.3 undecidable manual P 55 21.3675 109 0 74
IV.CESI.HHZ. 2023-02-01T14:10:36.81 0.1 positive manual P 276 22.755 108 0.01 98
IV.MF5.EHZ. 2023-02-01T14:10:36.95 0.1 undecidable manual P 89 22.3554 108 0.2 95
7F.SIB2.EHN. 2023-02-01T14:10:35.44 0.1 negative manual P 137 14.2746 124 -0.17 96
IV.PF6.EHZ. 2023-02-01T14:10:35.68 0.3 undecidable manual P 3 16.9719 117 -0.3 70
IV.MC2.EHZ. 2023-02-01T14:10:35.12 0.1 negative manual P 177 8.1807 144 0.18 97
7F.SIB3.EHN. 2023-02-01T14:10:35.44 0.1 undecidable manual P 150 14.0748 125 -0.15 96
IV.FEMA.HNN. 2023-02-01T14:10:35.19 0.6 undecidable manual P 257 11.1777 133 -0.05 50
IV.MMO1.EHZ. 2023-02-01T14:10:35.55 0.1 undecidable manual P 129 14.9739 122 -0.16 96
IV.GUMA.HHZ. 2023-02-01T14:10:35.42 0.3 undecidable manual P 55 14.9739 122 -0.29 70
IV.CSP1.EHZ. 2023-02-01T14:10:35.26 0.3 undecidable manual P 8 11.9769 131 -0.08 74
IT.MTCL.HGN. 2023-02-01T14:10:35.67 0.3 undecidable manual P 274 14.9739 122 -0.04 74
IV.FDMO.HHZ. 2023-02-01T14:10:35.06 0.1 positive manual P 306 9.6792 138 -0.03 100
7F.SIB1.EHZ. 2023-02-01T14:10:35.43 0.1 negative manual P 145 12.1767 130 0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.3 0.00022086810000000002 0.1408 AML other m 2023-02-01T14:10:37.50
IV.MC2.EHE. ML:1.9 0.0008585 0.28 AML other m 2023-02-01T14:10:37.81
IV.FDMO.HHN. ML:1.5 0.0003315346 0.1152 AML other m 2023-02-01T14:10:37.78
IV.CSP1.EHN. ML:1.8 0.0005755000000000001 1.82 AML other m 2023-02-01T14:10:38.02
IV.CSP1.EHE. ML:1.6 0.00034305003 0.1152 AML other m 2023-02-01T14:10:38.10
IV.MMO1.EHN. ML:1.8 0.0005005661000000001 0.0576 AML other m 2023-02-01T14:10:38.50
IV.MMO1.EHE. ML:1.7 0.00041049999999999995 0.14 AML other m 2023-02-01T14:10:38.52
IV.MC2.EHN. ML:2.0 0.0009635000000000001 0.16 AML other m 2023-02-01T14:10:38.83
IV.NRCA.HHE. ML:1.8 0.000532 0.16 AML other m 2023-02-01T14:10:39.31
IV.GUMA.HHN. ML:1.6 0.000319 0.4 AML other m 2023-02-01T14:10:39.30
IV.NRCA.HHN. ML:1.6 0.00032186815 0.1024 AML other m 2023-02-01T14:10:39.99
IV.GUMA.HHE. ML:1.5 0.00024349999999999998 0.28 AML other m 2023-02-01T14:10:41.65
IV.CESI.HHE. ML:0.9 0.000045876260000000004 0.0768 AML other m 2023-02-01T14:10:41.57
IV.CESI.HHN. ML:1.1 0.00007296649 0.16 AML other m 2023-02-01T14:10:42.33
IV.GUMA.HNN. ML:1.9 0.0007005454499999999 0.192 AML other m 2023-02-01T14:10:43.53
IV.GUMA.HNE. ML:1.7 0.0003829121 0.2176 AML other m 2023-02-01T14:10:39.16
IV.MMO1.HNE. ML:2.9 0.0064023045 0.6976 AML other m 2023-02-01T14:10:39.37
IV.NRCA.HNN. ML:1.6 0.00029555805000000004 0.1216 AML other m 2023-02-01T14:10:40.43
IV.NRCA.HNE. ML:1.8 0.00050176045 0.16 AML other m 2023-02-01T14:10:39.31
IV.CESI.HNN. ML:1.2 0.000086009535 0.3392 AML other m 2023-02-01T14:10:44.43
IV.CESI.HNE. ML:1.2 0.000095500795 0.4288 AML other m 2023-02-01T14:10:46.00
IV.MF5.EHE. ML:1.6 0.00021325915 0.16 AML other m 2023-02-01T14:10:41.58
IV.MF5.EHN. ML:1.4 0.0001512558 0.384 AML other m 2023-02-01T14:10:41.68
IV.SNTG.HHE. ML:0.8 0.00002704937 0.096 AML other m 2023-02-01T14:10:45.03
IV.SNTG.HHN. ML:0.8 0.000025643944999999997 0.096 AML other m 2023-02-01T14:10:45.04
IV.SNTG.HNN. ML:1.6 0.00013619769999999998 1.0496 AML other m 2023-02-01T14:10:50.90
IV.SMA1.EHE. ML:0.9 0.000024182755000000002 0.1408 AML other m 2023-02-01T14:10:48.17
IV.SMA1.EHN. ML:1.1 0.000037721325 0.1152 AML other m 2023-02-01T14:10:47.32
IV.ATCC.EHN. ML:1.2 0.000041877465000000004 0.416 AML other m 2023-02-01T14:10:49.40
IV.ATCC.HNN. ML:1.6 0.00011469053499999999 0.7104 AML other m 2023-02-01T14:11:00.36
IV.ATCC.EHE. ML:1.4 0.000057606905 0.2432 AML other m 2023-02-01T14:10:49.79
IV.ATCC.HNE. ML:1.7 0.00012836997499999998 0.6848 AML other m 2023-02-01T14:11:01.30
IV.RM33.EHE. ML:0.6 0.000012433375 0.1984 AML other m 2023-02-01T14:10:51.35
IV.RM33.EHN. ML:0.8 0.000013225088499999998 0.1984 AML other m 2023-02-01T14:10:50.70
IV.PIEI.HNN. ML:1.9 0.00010233605500000001 0.5696 AML other m 2023-02-01T14:11:04.87
IV.PIEI.HHN. ML:0.9 0.00000909152 0.16 AML other m 2023-02-01T14:10:57.78
IV.PIEI.HHE. ML:1.2 0.0000212615945 0.32 AML other m 2023-02-01T14:10:59.23
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