Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 22-01-2023 and time 10:59:12 (Italy) in region 2 km N Gualdo (MC)

A magnitude ML 1.7 earthquake occured in region: 2 km N Gualdo (MC), on

  • 22-01-2023 09:59:12 (UTC)
  • 22-01-2023 10:59:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0880, 13.3310 at 22 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
Gualdo MC 2 815 815
San Ginesio MC 3 3498 4313
Sant'Angelo in Pontano MC 6 1436 5749
Sarnano MC 6 3264 9013
Cessapalombo MC 6 512 9525
Ripe San Ginesio MC 7 852 10377
Camporotondo di Fiastrone MC 7 563 10940
Penna San Giovanni MC 8 1108 12048
Colmurano MC 9 1263 13311
Caldarola MC 10 1823 15134
Monte San Martino MC 11 765 15899
Loro Piceno MC 11 2401 18300
Belforte del Chienti MC 11 1886 20186
Falerone FM 12 3337 23523
Amandola FM 12 3629 27152
Montappone FM 13 1682 28834
Urbisaglia MC 13 2628 31462
Monte Vidon Corrado FM 13 731 32193
Smerillo FM 13 365 32558
Servigliano FM 13 2336 34894
Bolognola MC 13 142 35036
Massa Fermana FM 14 963 35999
Tolentino MC 14 20069 56068
Acquacanina MC 14 121 56189
Serrapetrona MC 15 966 57155
Fiastra MC 15 559 57714
Montefalcone Appennino FM 15 424 58138
Santa Vittoria in Matenano FM 15 1330 59468
Comunanza AP 16 3166 62634
Montefortino FM 16 1178 63812
Mogliano MC 16 4696 68508
Monteleone di Fermo FM 17 395 68903
Belmonte Piceno FM 17 646 69549
Montegiorgio FM 18 6851 76400
Montelparo FM 18 778 77178
Monsampietro Morico FM 18 659 77837
Petriolo MC 19 1998 79835
Force AP 19 1354 81189

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
61 Km S of Ancona (100861 inhabitants)
77 Km E of Perugia (166134 inhabitants)
81 Km NE of Terni (111501 inhabitants)
82 Km N of L'Aquila (69753 inhabitants)
88 Km S of Fano (60888 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
98 Km SE of Pesaro (94582 inhabitants)
100 Km NW of Pescara (121014 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 1.7 2023-01-22
09:59:12		 43.0882 13.3313 22 2024-03-01
17:18:02		 Bollettino Sismico Italiano INGV 116085521
Reviewed
Rev100 		ML 1.7 2023-01-22
09:59:12		 43.0897 13.3383 24 2023-01-22
10:06:13		 Sala Sismica INGV-Roma 113729951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-22 09:59:12 ± 0.08
Latitude 43.0882 ± 0.0027
Longitude 13.3313 ± 0.0049
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116085521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 373
Semi-minor axis of confidence ellipse (meter) 161
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 57
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.02518
Epicentral distance of station farthest from the epicenter (degree) 0.68169
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 116085521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-09 14:27:36

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 113729951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-22 10:06:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HNZ. 2023-01-22T09:59:32.06 0.6 undecidable manual S 204 58.7967 103 0.89 35
IV.GAVE.EHN. 2023-01-22T09:59:31.34 0.6 undecidable manual S 219 56.499 104 0.77 37
IV.ARVD.HHE. 2023-01-22T09:59:30.68 0.6 undecidable manual S 325 55.3002 104 0.42 42
IV.TERO.HHZ. 2023-01-22T09:59:30.74 0.6 undecidable manual S 157 56.1993 104 0.25 43
IV.FOSV.HNE. 2023-01-22T09:59:29.87 0.6 undecidable manual S 297 51.5151 105 0.59 41
IV.SMA1.EHN. 2023-01-22T09:59:28.67 0.6 undecidable manual S 180 50.8158 105 -0.42 43
IV.MPAG.EHZ. 2023-01-22T09:59:26.03 1.0 undecidable manual P 323 75.6687 100 0.11 22
IV.MTRA.EHE. 2023-01-22T09:59:25.69 0.6 undecidable manual S 172 37.1295 112 0.04 47
IV.MOMA.HHZ. 2023-01-22T09:59:25.01 0.3 undecidable manual P 243 69.375 101 0.05 67
IV.CESI.HHE. 2023-01-22T09:59:25.79 0.3 undecidable manual S 255 35.8419 113 0.47 65
IV.SNTG.HHE. 2023-01-22T09:59:25.38 0.3 undecidable manual S 300 36.6411 113 -0.14 69
IV.NRCA.HHZ. 2023-01-22T09:59:24.98 0.3 undecidable manual S 212 33.2445 115 0.28 68
IV.CING.HHZ. 2023-01-22T09:59:24.72 0.3 undecidable manual S 341 33.744 115 -0.09 70
IV.EL6.EHZ. 2023-01-22T09:59:24.78 0.3 undecidable manual S 325 32.5452 116 0.25 69
Y1.T1742.EHZ. 2023-01-22T09:59:24.17 0.3 undecidable manual P 350 59.496 103 0.7 57
IV.MML1.EHZ. 2023-01-22T09:59:24.02 0.3 undecidable manual S 276 29.2485 119 0.27 69
IV.LNSS.HNZ. 2023-01-22T09:59:23.20 0.1 undecidable manual P 204 58.7967 103 -0.16 89
IV.GAVE.EHN. 2023-01-22T09:59:23.08 0.1 undecidable manual P 219 56.499 104 0.06 91
IV.FEMA.HNE. 2023-01-22T09:59:23.63 0.6 undecidable manual S 239 26.751 122 0.46 44
IV.TERO.HHZ. 2023-01-22T09:59:22.78 0.3 undecidable manual P 157 56.1993 104 -0.19 67
IV.FOSV.HNE. 2023-01-22T09:59:22.06 0.1 undecidable manual P 297 51.5151 105 -0.21 89
7F.SIB3.EHN. 2023-01-22T09:59:22.63 0.3 undecidable manual S 192 24.1536 125 0.04 73
IV.ARVD.HHE. 2023-01-22T09:59:22.97 0.3 undecidable manual P 325 55.3002 104 0.13 67
IV.MC2.EHZ. 2023-01-22T09:59:22.60 0.3 undecidable manual S 211 22.755 127 0.31 69
IV.MNTT.EHZ. 2023-01-22T09:59:22.92 0.6 undecidable manual S 98 21.6672 129 0.87 37
7F.SIB1.EHE. 2023-01-22T09:59:22.46 0.6 undecidable manual S 193 22.0668 128 0.33 46
IV.MF5.EHZ. 2023-01-22T09:59:21.11 0.3 undecidable manual S 137 15.2736 140 0.28 70
IV.MMO1.EHZ. 2023-01-22T09:59:21.93 0.3 undecidable manual S 181 20.9679 130 0.02 73
IV.SMA1.EHN. 2023-01-22T09:59:21.84 0.1 undecidable manual P 180 50.8158 105 -0.32 87
IV.FDMO.HHZ. 2023-01-22T09:59:21.80 0.3 undecidable manual S 254 20.5683 130 -0.04 72
7F.SIB2.EHE. 2023-01-22T09:59:21.94 0.6 undecidable manual S 186 21.9669 128 -0.18 47
IV.CSP1.EHE. 2023-01-22T09:59:20.05 0.3 undecidable manual S 272 10.2786 151 -0.02 74
IV.MNTP.HNZ. 2023-01-22T09:59:20.69 0.3 undecidable manual S 64 12.4764 146 0.32 70
IV.PF6.EHN. 2023-01-22T09:59:20.07 0.3 undecidable manual S 296 12.3765 146 -0.3 69
IV.SNTG.HHE. 2023-01-22T09:59:19.94 0.1 undecidable manual P 300 36.6411 113 -0.16 92
IV.GUMA.HHZ. 2023-01-22T09:59:19.46 0.3 undecidable manual S 174 2.7972 172 0.03 76
IV.NRCA.HHZ. 2023-01-22T09:59:19.51 0.1 positive manual P 212 33.2445 115 -0.12 94
IV.SAP2.EHE. 2023-01-22T09:59:19.53 0.1 undecidable manual S 80 5.5944 164 -0.06 99
IV.CING.HHZ. 2023-01-22T09:59:19.42 0.3 negative manual P 341 33.744 115 -0.27 68
IV.MTRA.EHE. 2023-01-22T09:59:19.84 0.3 undecidable manual P 172 37.1295 112 -0.33 67
IV.EL6.EHZ. 2023-01-22T09:59:19.58 0.6 undecidable manual P 325 32.5452 116 0.05 48
IV.CESI.HHE. 2023-01-22T09:59:19.98 0.1 negative manual P 255 35.8419 113 0 95
IV.MML1.EHZ. 2023-01-22T09:59:18.97 0.1 undecidable manual P 276 29.2485 119 -0.11 94
7F.SIB1.EHE. 2023-01-22T09:59:18.03 0.1 positive manual P 193 22.0668 128 -0.11 96
IV.MNTT.EHZ. 2023-01-22T09:59:18.23 0.1 negative manual P 98 21.6672 129 0.14 95
7F.SIB3.EHN. 2023-01-22T09:59:18.13 0.1 positive manual P 192 24.1536 125 -0.28 92
IV.FEMA.HNE. 2023-01-22T09:59:18.85 0.3 undecidable manual P 239 26.751 122 0.11 71
IV.MC2.EHZ. 2023-01-22T09:59:18.24 0.1 undecidable manual P 211 22.755 127 0 97
IV.FDMO.HHZ. 2023-01-22T09:59:17.81 0.3 undecidable manual P 254 20.5683 130 -0.16 71
7F.SIB2.EHE. 2023-01-22T09:59:17.83 0.1 positive manual P 186 21.9669 128 -0.31 92
IV.MF5.EHZ. 2023-01-22T09:59:17.41 0.1 positive manual P 137 15.2736 140 0.02 98
IV.MMO1.EHZ. 2023-01-22T09:59:17.76 0.1 undecidable manual P 181 20.9679 130 -0.25 93
IV.SAP2.EHE. 2023-01-22T09:59:16.64 0.1 undecidable manual P 80 5.5944 164 -0.04 100
IV.MNTP.HNZ. 2023-01-22T09:59:16.88 0.1 undecidable manual P 64 12.4764 146 -0.25 95
IV.PF6.EHN. 2023-01-22T09:59:16.79 0.1 negative manual P 296 12.3765 146 -0.34 92
IV.CSP1.EHE. 2023-01-22T09:59:16.80 0.1 positive manual P 272 10.2786 151 -0.15 96
IV.GUMA.HHZ. 2023-01-22T09:59:16.44 0.1 positive manual P 174 2.7972 172 -0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HNE. ML:1.7 0.00040857125 0.1472 AML other m 2023-01-22T09:59:19.62
IV.GUMA.HHN. ML:1.8 0.0004365 0.36 AML other m 2023-01-22T09:59:19.62
IV.GUMA.HHE. ML:1.8 0.0005045 0.24 AML other m 2023-01-22T09:59:19.56
IV.MF5.EHN. ML:1.9 0.0005064999999999999 0.12 AML other m 2023-01-22T09:59:21.27
IV.MF5.EHE. ML:1.9 0.0005135000000000001 0.7 AML other m 2023-01-22T09:59:21.66
IV.FDMO.HHN. ML:1.5 0.00017299999999999998 0.4 AML other m 2023-01-22T09:59:22.33
IV.MMO1.EHE. ML:1.4 0.00012800945 0.1792 AML other m 2023-01-22T09:59:22.39
IV.MMO1.EHN. ML:1.1 0.00007206376 0.1216 AML other m 2023-01-22T09:59:22.52
IV.FDMO.HHE. ML:1.5 0.000167 0.46 AML other m 2023-01-22T09:59:23.73
IV.MC2.EHN. ML:1.7 0.00025776635 0.16 AML other m 2023-01-22T09:59:24.12
IV.MML1.EHE. ML:1.5 0.0001266786 0.16 AML other m 2023-01-22T09:59:24.52
IV.MML1.EHN. ML:1.4 0.00010320991 0.16 AML other m 2023-01-22T09:59:24.88
IV.NRCA.HHE. ML:2.1 0.00045999999999999996 0.16 AML other m 2023-01-22T09:59:25.27
IV.NRCA.HNE. ML:2.0 0.00040493455 0.1472 AML other m 2023-01-22T09:59:25.26
IV.NRCA.HHN. ML:1.9 0.00026900000000000003 1.18 AML other m 2023-01-22T09:59:25.20
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