Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 23-10-2022 and time 06:23:35 (Italy) in region 3 km SE Bolognola (MC)

A magnitude ML 1.8 earthquake occured in region: 3 km SE Bolognola (MC), on

  • 23-10-2022 04:23:35 (UTC)
  • 23-10-2022 06:23:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9800, 13.2520 at 26 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 3 142 142
Sarnano MC 8 3264 3406
Acquacanina MC 8 121 3527
Montefortino FM 8 1178 4705
Amandola FM 9 3629 8334
Fiastra MC 10 559 8893
Ussita MC 10 444 9337
Montemonaco AP 11 604 9941
Gualdo MC 12 815 10756
Castelsantangelo sul Nera MC 12 281 11037
Comunanza AP 14 3166 14203
Visso MC 14 1107 15310
Cessapalombo MC 14 512 15822
Fiordimonte MC 15 202 16024
San Ginesio MC 15 3498 19522
Smerillo FM 16 365 19887
Pievebovigliana MC 16 866 20753
Monte San Martino MC 16 765 21518
Penna San Giovanni MC 17 1108 22626
Montegallo AP 17 523 23149
Montefalcone Appennino FM 17 424 23573
Camporotondo di Fiastrone MC 17 563 24136
Sant'Angelo in Pontano MC 18 1436 25572
Pieve Torina MC 18 1458 27030
Caldarola MC 18 1823 28853
Palmiano AP 19 196 29049
Force AP 20 1354 30403

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
68 Km NE of Terni (111501 inhabitants)
71 Km N of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
74 Km SW of Ancona (100861 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
97 Km NW of Pescara (121014 inhabitants)
98 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 1.8 2022-10-23
04:23:35		 42.9803 13.2518 26 2024-03-01
15:27:58		 Bollettino Sismico Italiano INGV 111409601
Reviewed
Rev100 		ML 1.8 2022-10-23
04:23:35		 42.9803 13.2478 26 2022-10-23
04:31:11		 Sala Sismica INGV-Roma 111092861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-23 04:23:35 ± 0.06
Latitude 42.9803 ± 0.0027
Longitude 13.2518 ± 0.0049
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 111409601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 309
Semi-minor axis of confidence ellipse (meter) 225
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 60
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.79680
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 38
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 111409601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-11-02 09:37:44

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 111092861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-10-23 04:31:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOCO.HHZ. 2022-10-23T04:24:42.66 3.0 undecidable manual Sg 7.06 0
IV.FNVD.HHZ. 2022-10-23T04:24:39.04 3.0 undecidable manual Sg 8.59 0
IV.IMOL.HNZ. 2022-10-23T04:24:25.53 3.0 undecidable manual Sn -0.3 0
IV.ARCI.HHZ. 2022-10-23T04:23:57.60 3.0 undecidable manual Pn 0.03 0
IV.FOSV.EHZ. 2022-10-23T04:23:53.42 0.6 undecidable manual S 311 52.9026 110 0.57 41
IV.RM33.EHZ. 2022-10-23T04:23:53.24 0.6 undecidable manual S 183 52.4031 110 0.51 41
IV.TERO.HHZ. 2022-10-23T04:23:52.53 0.6 undecidable manual S 144 48.9177 112 0.66 39
IV.GAVE.EHZ. 2022-10-23T04:23:51.14 0.3 undecidable manual S 222 43.2234 115 0.67 59
IV.ASSB.HHZ. 2022-10-23T04:23:51.90 0.3 undecidable manual S 278 48.618 112 0.11 69
IV.NARO.HHZ. 2022-10-23T04:23:50.86 0.3 undecidable manual P 322 88.4448 101 0 65
IV.EL6.EHZ. 2022-10-23T04:23:50.43 0.6 undecidable manual S 343 40.5261 116 0.6 42
IV.PIEI.HHZ. 2022-10-23T04:23:50.07 0.3 undecidable manual P 317 84.5487 102 -0.19 64
IV.CING.HHZ. 2022-10-23T04:23:50.88 0.6 undecidable manual S 354 44.1225 114 0.2 46
IV.SMA1.EHZ. 2022-10-23T04:23:49.69 0.3 undecidable manual S 170 39.4272 117 0.14 69
IV.FIAM.HHZ. 2022-10-23T04:23:49.36 0.3 undecidable manual P 188 79.7646 102 -0.18 65
IV.SNTG.HHZ. 2022-10-23T04:23:49.55 0.3 undecidable manual S 321 39.5271 117 -0.03 71
IV.FRON.EHZ. 2022-10-23T04:23:48.61 0.3 undecidable manual P 325 73.1712 104 0.05 67
IV.CESI.HHZ. 2022-10-23T04:23:47.23 0.6 undecidable manual S 276 28.3494 127 0.2 47
IV.GIGS.HHZ. 2022-10-23T04:23:47.04 0.3 undecidable manual P 156 64.0914 106 -0.15 67
IV.MURB.HHZ. 2022-10-23T04:23:47.62 0.3 undecidable manual P 298 66.6777 105 0.03 68
IV.ARVD.HHZ. 2022-10-23T04:23:46.97 0.3 undecidable manual P 337 62.6928 106 -0.02 69
IV.ARRO.EHZ. 2022-10-23T04:23:46.68 0.3 undecidable manual P 222 59.5959 107 0.15 67
IV.MML1.EHZ. 2022-10-23T04:23:46.81 0.3 undecidable manual S 303 27.0507 128 0.03 73
IV.MOMA.HHZ. 2022-10-23T04:23:46.68 0.3 undecidable manual P 251 58.7967 108 0.27 65
IV.MF5.EHZ. 2022-10-23T04:23:45.08 0.3 undecidable manual S 87 16.872 143 0.21 72
IV.RM33.EHZ. 2022-10-23T04:23:45.34 0.1 undecidable manual P 183 52.4031 110 -0.14 92
IV.NRCA.HNZ. 2022-10-23T04:23:45.28 0.3 undecidable manual S 215 19.7691 138 -0.07 73
IV.FOSV.EHZ. 2022-10-23T04:23:45.49 0.1 positive manual P 311 52.9026 110 -0.06 92
IV.SAP2.EHZ. 2022-10-23T04:23:45.33 0.3 undecidable manual S 43 17.5713 142 0.35 70
IV.ATCC.EHZ. 2022-10-23T04:23:45.80 0.1 positive manual P 295 54.501 109 0.01 93
IV.CING.HHZ. 2022-10-23T04:23:44.11 0.1 undecidable manual P 354 44.1225 114 -0.18 91
IV.MC2.EHZ. 2022-10-23T04:23:44.02 0.3 undecidable manual S 214 9.1797 158 0.16 74
IV.CSP1.EHZ. 2022-10-23T04:23:44.14 0.1 undecidable manual S 343 12.9759 151 -0.15 96
IV.GAVE.EHZ. 2022-10-23T04:23:44.28 0.1 undecidable manual P 222 43.2234 115 0.11 93
IV.LNSS.HNZ. 2022-10-23T04:23:44.41 0.3 undecidable manual P 202 45.3213 113 -0.05 71
IV.GUMA.HHZ. 2022-10-23T04:23:44.32 0.3 undecidable manual S 36 11.3775 154 0.23 73
IV.ASSB.HHZ. 2022-10-23T04:23:44.86 0.1 positive manual P 278 48.618 112 -0.08 93
IV.PF6.EHN. 2022-10-23T04:23:44.69 0.3 undecidable manual S 345 18.0708 141 -0.37 68
IV.FDMO.HHZ. 2022-10-23T04:23:44.27 0.3 undecidable manual S 295 14.7741 147 -0.27 70
IV.TERO.HHZ. 2022-10-23T04:23:44.78 0.3 undecidable manual P 144 48.9177 112 -0.2 68
7F.SIB3.EHN. 2022-10-23T04:23:43.91 0.3 undecidable manual S 173 11.7771 153 -0.23 72
IV.MMO1.EHZ. 2022-10-23T04:23:43.98 0.1 undecidable manual S 146 10.878 155 -0.05 99
IV.SMA1.EHZ. 2022-10-23T04:23:43.42 0.1 positive manual P 170 39.4272 117 -0.22 92
IV.SNTG.HHZ. 2022-10-23T04:23:43.62 0.3 undecidable manual P 321 39.5271 117 -0.04 71
IV.EL6.EHZ. 2022-10-23T04:23:43.71 0.3 undecidable manual P 343 40.5261 116 -0.1 70
7F.SIB2.EHE. 2022-10-23T04:23:43.84 0.1 undecidable manual S 157 10.7781 155 -0.18 97
IV.MML1.EHZ. 2022-10-23T04:23:42.02 0.1 positive manual P 303 27.0507 128 -0.02 97
IV.CESI.HHZ. 2022-10-23T04:23:42.24 0.1 positive manual P 276 28.3494 127 0.05 97
IV.MNTT.EHZ. 2022-10-23T04:23:42.62 0.1 undecidable manual P 72 29.3484 126 0.3 92
IV.ASCOL.EHN. 2022-10-23T04:23:42.04 0.3 undecidable manual P 117 30.9468 124 -0.48 66
IV.SAP2.EHZ. 2022-10-23T04:23:41.10 0.1 undecidable manual P 43 17.5713 142 0.09 98
IV.MNTP.HNZ. 2022-10-23T04:23:41.84 0.3 undecidable manual P 45 24.753 131 0.07 73
IV.MF5.EHZ. 2022-10-23T04:23:41.09 0.1 negative manual P 87 16.872 143 0.15 97
IT.MTCL.HGZ. 2022-10-23T04:23:41.14 0.1 undecidable manual P 274 20.5683 137 -0.16 96
IV.NRCA.HNZ. 2022-10-23T04:23:41.15 0.1 positive manual P 215 19.7691 138 -0.07 98
IV.GUMA.HHZ. 2022-10-23T04:23:40.54 0.1 negative manual P 36 11.3775 154 0.05 100
IV.PF6.EHN. 2022-10-23T04:23:40.83 0.1 undecidable manual P 345 18.0708 141 -0.22 95
IV.FDMO.HHZ. 2022-10-23T04:23:40.61 0.1 positive manual P 295 14.7741 147 -0.14 97
7F.SIB2.EHE. 2022-10-23T04:23:40.30 0.1 positive manual P 157 10.7781 155 -0.15 98
7F.SIB3.EHN. 2022-10-23T04:23:40.38 0.1 positive manual P 173 11.7771 153 -0.14 98
IV.MMO1.EHZ. 2022-10-23T04:23:40.38 0.1 positive manual P 146 10.878 155 -0.08 99
IV.MC2.EHZ. 2022-10-23T04:23:40.42 0.1 positive manual P 214 9.1797 158 0.06 100
IV.CSP1.EHZ. 2022-10-23T04:23:40.53 0.1 positive manual P 343 12.9759 151 -0.08 98
7F.SIB1.EHE. 2022-10-23T04:23:40.44 0.1 positive manual P 171 9.5793 157 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHE. ML:2.5 0.001635 0.12 AML other m 2022-10-23T04:23:44.18
IV.MMO1.EHN. ML:2.4 0.0012665 0.44 AML other m 2022-10-23T04:23:44.23
IV.CSP1.EHE. ML:2.3 0.0010505 0.3 AML other m 2022-10-23T04:23:44.49
IV.FDMO.HHE. ML:1.7 0.0002735 0.74 AML other m 2022-10-23T04:23:44.54
IV.FDMO.HHN. ML:1.9 0.00040849999999999995 0.36 AML other m 2022-10-23T04:23:44.80
IV.GUMA.HNE. ML:2.2 0.0009809999999999999 0.18 AML other m 2022-10-23T04:23:44.82
IV.GUMA.HHE. ML:2.3 0.0011205 0.2 AML other m 2022-10-23T04:23:44.73
IV.CSP1.EHN. ML:2.2 0.000996 1.78 AML other m 2022-10-23T04:23:44.89
IV.GUMA.HNN. ML:2.0 0.0005225 1.26 AML other m 2022-10-23T04:23:45.72
IV.GUMA.HHN. ML:2.1 0.0007395 1.54 AML other m 2022-10-23T04:23:45.86
IV.MF5.EHN. ML:1.8 0.00034050000000000004 0.44 AML other m 2022-10-23T04:23:45.65
IV.MF5.EHE. ML:1.7 0.000273 0.72 AML other m 2022-10-23T04:23:45.25
IV.NRCA.HNN. ML:1.9 0.00034950000000000004 0.12 AML other m 2022-10-23T04:23:45.68
IV.NRCA.HHN. ML:1.9 0.000348 0.12 AML other m 2022-10-23T04:23:45.68
IV.NRCA.HNE. ML:2.0 0.000526 0.12 AML other m 2022-10-23T04:23:45.65
IV.NRCA.HHE. ML:2.0 0.0005365 0.14 AML other m 2022-10-23T04:23:45.65
IV.MML1.EHE. ML:1.9 0.000326 0.2 AML other m 2022-10-23T04:23:47.34
IV.CESI.HHE. ML:1.8 0.00025 0.16 AML other m 2022-10-23T04:23:47.61
IV.MML1.EHN. ML:1.6 0.000175 0.92 AML other m 2022-10-23T04:23:47.64
IV.CESI.HHN. ML:1.7 0.000174 0.36 AML other m 2022-10-23T04:23:47.70
IV.SAP2.EHE. ML:1.5 0.00017250000000000002 0.88 AML other m 2022-10-23T04:23:48.30
IV.SAP2.EHN. ML:2.2 0.000896 0.5 AML other m 2022-10-23T04:23:48.51
IV.SMA1.EHE. ML:1.4 0.00007869999999999999 0.96 AML other m 2022-10-23T04:23:49.86
IV.SMA1.EHN. ML:1.3 0.0000624 0.84 AML other m 2022-10-23T04:23:49.52
IV.SNTG.HHE. ML:1.4 0.000071 0.12 AML other m 2022-10-23T04:23:50.93
IV.SNTG.HHN. ML:1.5 0.0000859 1.14 AML other m 2022-10-23T04:23:50.95
IV.CING.HHN. ML:1.9 0.0001975 0.58 AML other m 2022-10-23T04:23:51.65
IV.CING.HHE. ML:1.7 0.00013445000000000002 1.26 AML other m 2022-10-23T04:23:52.81
IV.GAVE.EHN. ML:2.0 0.0002475 0.2 AML other m 2022-10-23T04:23:52.40
IV.GAVE.EHE. ML:2.0 0.000268 0.18 AML other m 2022-10-23T04:23:52.50
IV.ASSB.HHE. ML:1.6 0.00009655 0.56 AML other m 2022-10-23T04:23:52.24
IV.ASSB.HHN. ML:1.6 0.00008285000000000001 0.14 AML other m 2022-10-23T04:23:52.67
IV.RM33.EHN. ML:1.4 0.0000477 0.22 AML other m 2022-10-23T04:23:53.47
IV.FOSV.EHE. ML:1.6 0.0000906 0.22 AML other m 2022-10-23T04:23:53.69
IV.FOSV.EHN. ML:1.7 0.00010350000000000001 1.32 AML other m 2022-10-23T04:23:54.67
IV.ATCC.EHN. ML:1.5 0.00006515 0.36 AML other m 2022-10-23T04:23:54.49
IV.ATCC.EHE. ML:1.8 0.0001203 0.28 AML other m 2022-10-23T04:23:54.55
IV.ARRO.EHE. ML:1.4 0.0000497 0.22 AML other m 2022-10-23T04:23:55.65
IV.ARRO.EHN. ML:1.3 0.00003565 0.48 AML other m 2022-10-23T04:23:57.27
IV.MOMA.HHE. ML:1.7 0.00008824999999999999 0.8 AML other m 2022-10-23T04:23:57.91
IV.MOMA.HHN. ML:1.6 0.00007925 0.92 AML other m 2022-10-23T04:23:58.00
IV.MURB.HHE. ML:2.0 0.00016749999999999998 0.24 AML other m 2022-10-23T04:23:58.59
IV.MURB.HHN. ML:1.9 0.00012145 0.62 AML other m 2022-10-23T04:23:58.31
IV.RM33.EHE. ML:1.5 0.00006765 0.42 AML other m 2022-10-23T04:24:00.40
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