Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 11-05-2023 and time 17:45:39 (UTC) in region 4 km W Petriano (PU)

A magnitude ML 1.4 earthquake occured in region: 4 km W Petriano (PU), on

  • 11-05-2023 17:45:39 (UTC)
  • 11-05-2023 19:45:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8000, 12.6880 at 37 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Petriano PU 4 2829 2829
Montecalvo in Foglia PU 5 2718 5547
Mondaino RN 7 1394 6941
Montegridolfo RN 7 1012 7953
Saludecio RN 8 3120 11073
Urbino PU 9 15019 26092
Tavoleto PU 9 867 26959
Auditore PU 10 1566 28525
Vallefoglia PU 10 15018 43543
Montelabbate PU 10 6938 50481
Monteciccardo PU 10 1690 52171
Isola del Piano PU 10 594 52765
Montefiore Conca RN 12 2269 55034
Tavullia PU 12 8003 63037
Morciano di Romagna RN 13 7045 70082
Mombaroccio PU 14 2152 72234
Montefelcino PU 14 2671 74905
Fermignano PU 14 8596 83501
Gemmano RN 14 1158 84659
Fossombrone PU 16 9575 94234
Sassocorvaro PU 16 3504 97738
San Clemente RN 16 5577 103315
San Giovanni in Marignano RN 16 9417 112732
Serrungarina PU 16 2634 115366
Cartoceto PU 16 7887 123253
Gradara PU 17 4835 128088
Mercatino Conca PU 18 1086 129174
Saltara PU 18 6925 136099
Sassofeltrio PU 18 1388 137487
Montescudo - Monte Colombo RN 18 6779 144266
Monte Grimano Terme PU 19 1136 145402
Cattolica RN 19 17125 162527
Peglio PU 19 696 163223
Misano Adriatico RN 19 13014 176237
Gabicce Mare PU 20 5781 182018
Sant'Ippolito PU 20 1563 183581
Urbania PU 20 7099 190680
Macerata Feltria PU 20 1990 192670
Coriano RN 20 10502 203172

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Pesaro (94582 inhabitants)
27 Km W of Fano (60888 inhabitants)
31 Km SE of Rimini (147750 inhabitants)
52 Km SE of Cesena (96758 inhabitants)
70 Km W of Ancona (100861 inhabitants)
70 Km SE of Forlì (117913 inhabitants)
75 Km E of Arezzo (99543 inhabitants)
79 Km SE of Ravenna (159116 inhabitants)
81 Km NE of Perugia (166134 inhabitants)
84 Km SE of Faenza (58541 inhabitants)
94 Km N of Foligno (57155 inhabitants)
99 Km SE of Imola (69797 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
Reviewed
Rev100 		ML 1.4 2023-05-11
17:45:39		 43.7998 12.6882 37 2023-05-11
18:14:30		 Sala Sismica INGV-Roma 117256571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-11 17:45:39 ± 0.16
Latitude 43.7998 ± 0.0099
Longitude 12.6882 ± 0.0150
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117256571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1343
Semi-minor axis of confidence ellipse (meter) 1005
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 1340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
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) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.17267
Epicentral distance of station farthest from the epicenter (degree) 0.81568
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 117256571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-11 18:14:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2023-05-11T17:45:55.09 0.6 undecidable manual S 149 39.1275 130 0.39 46
IV.CESI.HHZ. 2023-05-11T17:45:54.89 0.6 undecidable manual P 169 89.8434 54 0.27 43
IV.FDMO.HHZ. 2023-05-11T17:45:54.96 0.6 undecidable manual P 159 90.5427 54 0.25 43
IV.CAFI.HHZ. 2023-05-11T17:45:53.37 0.3 undecidable manual P 228 78.0663 54 0.22 66
IV.PIEI.HHZ. 2023-05-11T17:45:53.36 0.6 undecidable manual S 203 31.746 136 0.1 49
IV.MML1.EHZ. 2023-05-11T17:45:53.41 0.3 undecidable manual P 163 79.4649 54 0.08 68
IV.CRE.HHZ. 2023-05-11T17:45:52.00 0.3 positive manual P 251 62.3931 116 0.85 54
IV.NARO.HHZ. 2023-05-11T17:45:51.78 0.6 undecidable manual S 202 22.6551 146 0.06 50
IV.MPAG.EHZ. 2023-05-11T17:45:51.71 0.3 undecidable manual S 163 19.7691 150 0.4 71
IV.CING.HNE. 2023-05-11T17:45:51.46 0.3 undecidable manual P 139 62.2932 117 0.33 67
IV.PE3.EHE. 2023-05-11T17:45:51.85 0.6 undecidable manual S 233 19.1697 150 0.61 44
IV.PESA.HHE. 2023-05-11T17:45:51.75 0.6 undecidable manual S 38 19.869 150 0.43 46
IV.SNTG.HHE. 2023-05-11T17:45:51.20 0.3 undecidable manual P 161 63.7917 116 -0.14 69
IV.ATPI.EHZ. 2023-05-11T17:45:48.57 0.6 negative manual P 211 45.0216 126 -0.28 46
IV.ARVD.HHZ. 2023-05-11T17:45:48.01 0.1 undecidable manual P 149 39.1275 130 -0.12 96
IV.SSFR.HHZ. 2023-05-11T17:45:48.13 0.1 negative manual P 169 41.0256 128 -0.23 94
IV.ATSC.EHN. 2023-05-11T17:45:48.32 0.3 undecidable manual P 180 41.7249 128 -0.12 72
IV.FRON.EHZ. 2023-05-11T17:45:47.09 0.1 undecidable manual P 174 31.4463 136 -0.17 97
IV.PARC.HHZ. 2023-05-11T17:45:47.87 0.3 undecidable manual P 245 39.7269 129 -0.33 70
IV.MPAG.EHZ. 2023-05-11T17:45:46.06 0.1 undecidable manual P 163 19.7691 150 -0.12 100
IV.PIEI.HHZ. 2023-05-11T17:45:46.87 0.1 undecidable manual P 203 31.746 136 -0.43 92
IV.PESA.HHE. 2023-05-11T17:45:45.90 0.3 undecidable manual P 38 19.869 150 -0.28 73
IV.NARO.HHZ. 2023-05-11T17:45:45.96 0.3 undecidable manual P 202 22.6551 146 -0.45 70
IV.PE3.EHE. 2023-05-11T17:45:45.99 0.3 undecidable manual P 233 19.1697 150 -0.14 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPAG.EHN. ML:1.4 0.000086972565 0.128 AML other m 2023-05-11T17:45:52.03
IV.MPAG.EHE. ML:1.6 0.00013652565 0.1536 AML other m 2023-05-11T17:45:52.63
IV.PIEI.HHE. ML:1.6 0.00010748284999999999 0.256 AML other m 2023-05-11T17:45:53.65
IV.PIEI.HHN. ML:1.3 0.0000543056 0.2176 AML other m 2023-05-11T17:45:54.25
IV.SSFR.HHN. ML:1.6 0.0000859 0.7 AML other m 2023-05-11T17:45:57.50
IV.SSFR.HHE. ML:1.6 0.00010139999999999998 0.14 AML other m 2023-05-11T17:45:58.44
IV.CRE.HHE. ML:1.4 0.00003765 0.32 AML other m 2023-05-11T17:46:02.24
IV.CRE.HHN. ML:1.6 0.000059000000000000004 1.58 AML other m 2023-05-11T17:46:03.85
IV.NARO.HHE. ML:1.2 0.00005571927 0.064 AML other m 2023-05-11T17:45:52.44
IV.NARO.HHN. ML:1.3 0.00006477109500000001 0.1024 AML other m 2023-05-11T17:45:52.35
IV.FRON.EHE. ML:1.2 0.00004764486 0.1152 AML other m 2023-05-11T17:45:53.85
IV.FRON.EHN. ML:1.4 0.00007134284500000001 0.1408 AML other m 2023-05-11T17:45:54.43
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