Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 19-04-2023 and time 21:21:17 (Italy) in region 1 km SW Scheggino (PG)

A magnitude ML 1.5 earthquake occured in region: 1 km SW Scheggino (PG), on

  • 19-04-2023 19:21:17 (UTC)
  • 19-04-2023 21:21:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7080, 12.8250 at 8 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
Scheggino PG 1 461 461
Sant'Anatolia di Narco PG 3 564 1025
Vallo di Nera PG 8 364 1389
Spoleto PG 8 38218 39607
Poggiodomo PG 9 117 39724
Ferentillo TR 10 1913 41637
Monteleone di Spoleto PG 12 599 42236
Montefranco TR 13 1276 43512
Campello sul Clitunno PG 13 2442 45954
Polino TR 14 233 46187
Arrone TR 15 2763 48950
Cerreto di Spoleto PG 15 1075 50025
Cascia PG 16 3217 53242
Castel Ritaldi PG 18 3278 56520
Leonessa RI 20 2435 58955
Trevi PG 20 8469 67424

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Terni (111501 inhabitants)
29 Km SE of Foligno (57155 inhabitants)
57 Km SE of Perugia (166134 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Viterbo (67173 inhabitants)
72 Km W of Teramo (54892 inhabitants)
79 Km N of Guidonia Montecelio (88673 inhabitants)
83 Km N of Tivoli (56533 inhabitants)
95 Km NE of Roma (2864731 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 2023-04-19
19:21:17		 42.7077 12.8253 8 2024-03-01
17:18:12		 Bollettino Sismico Italiano INGV 118939281
Reviewed
Rev100 		ML 1.5 2023-04-19
19:21:17		 42.71 12.8252 8 2023-04-19
19:29:19		 Sala Sismica INGV-Roma 116529281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-19 19:21:17 ± 0.06
Latitude 42.7077 ± 0.0036
Longitude 12.8253 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118939281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 346
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
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 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.72036
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 118939281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-07-03 17:04:31

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 116529281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-19 19:29:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2023-04-19T19:21:42.34 0.3 undecidable manual S 22 79.9644 50 0.83 52
IV.EL6.EHZ. 2023-04-19T19:21:40.30 0.6 undecidable manual S 18 72.4719 50 0.77 36
IV.GUMA.HHZ. 2023-04-19T19:21:36.17 0.3 undecidable manual S 46 57.1983 50 0.74 57
IV.SNTG.HHZ. 2023-04-19T19:21:36.80 0.3 undecidable manual S 9 61.494 50 0.23 66
IV.MF5.EHZ. 2023-04-19T19:21:35.90 1.0 undecidable manual S 59 60.1953 50 -0.35 21
IV.ATCC.EHZ. 2023-04-19T19:21:34.90 0.6 undecidable manual S 344 55.1004 50 0.03 46
IV.MML1.EHZ. 2023-04-19T19:21:32.30 0.6 undecidable manual S 15 46.62 50 -0.31 44
IV.MMO1.EHZ. 2023-04-19T19:21:32.30 0.6 undecidable manual S 62 46.0206 50 -0.16 46
IV.FDMO.HHZ. 2023-04-19T19:21:31.20 0.3 undecidable manual S 30 42.2244 50 -0.24 68
IV.SMA1.EHZ. 2023-04-19T19:21:31.60 0.6 undecidable manual S 101 42.4242 50 0.1 47
IV.CING.HHZ. 2023-04-19T19:21:31.51 0.3 negative manual P 22 79.9644 50 0.34 62
IV.ASSB.HHZ. 2023-04-19T19:21:30.30 0.6 undecidable manual S 340 39.5271 50 -0.43 44
IV.RM33.EHZ. 2023-04-19T19:21:30.10 0.6 undecidable manual S 125 38.628 50 -0.39 44
IT.MTCL.HGZ. 2023-04-19T19:21:29.23 0.6 undecidable manual S 24 34.743 103 -0.19 46
IV.EL6.EHZ. 2023-04-19T19:21:29.88 0.1 undecidable manual P 18 72.4719 50 -0.14 87
IV.FEMA.HNE. 2023-04-19T19:21:29.36 0.3 undecidable manual S 33 33.6441 103 0.34 67
IV.GUMA.HHZ. 2023-04-19T19:21:28.01 0.6 undecidable manual P 46 57.1983 50 0.35 43
IV.SNTG.HHZ. 2023-04-19T19:21:28.07 1.0 negative manual P 9 61.494 50 -0.24 22
IV.MF5.EHZ. 2023-04-19T19:21:28.40 0.6 positive manual P 59 60.1953 50 0.27 43
IV.CESI.HHZ. 2023-04-19T19:21:28.90 0.6 undecidable manual S 11 33.6441 103 -0.12 47
IV.MGAB.HHZ. 2023-04-19T19:21:28.00 0.6 undecidable manual P 292 62.3931 50 -0.45 42
IV.ATCC.EHZ. 2023-04-19T19:21:27.08 1.0 negative manual P 344 55.1004 50 -0.25 22
IV.NRCA.HHZ. 2023-04-19T19:21:26.40 0.6 undecidable manual S 59 27.3504 106 -0.53 43
IV.ORTE.EHZ. 2023-04-19T19:21:26.10 0.6 undecidable manual P 233 45.2214 50 0.29 45
IV.SMA1.EHZ. 2023-04-19T19:21:25.32 0.3 undecidable manual P 101 42.4242 50 -0.07 70
IV.MOMA.HHZ. 2023-04-19T19:21:25.40 0.6 undecidable manual S 297 23.3544 109 -0.21 47
IV.MMO1.EHZ. 2023-04-19T19:21:25.60 0.3 negative manual P 62 46.0206 50 -0.34 66
IV.MML1.EHZ. 2023-04-19T19:21:25.72 1.0 positive manual P 15 46.62 50 -0.3 22
IV.LNSS.HHZ. 2023-04-19T19:21:25.00 0.6 undecidable manual S 123 21.0678 111 0.16 48
IV.FDMO.HHZ. 2023-04-19T19:21:25.17 0.1 undecidable manual P 30 42.2244 50 -0.18 92
IT.GNU.HGE. 2023-04-19T19:21:25.72 0.6 undecidable manual S 297 23.3544 109 0.12 48
IV.CESX.HHZ. 2023-04-19T19:21:25.30 0.6 undecidable manual S 241 22.3554 110 0.03 49
IV.RM33.EHZ. 2023-04-19T19:21:24.52 0.6 positive manual P 125 38.628 50 -0.28 45
IT.MTCL.HGZ. 2023-04-19T19:21:24.42 0.1 undecidable manual P 24 34.743 103 0.24 92
IV.ASSB.HHZ. 2023-04-19T19:21:24.53 0.1 negative manual P 340 39.5271 50 -0.41 88
IV.CESI.HHZ. 2023-04-19T19:21:23.66 0.3 positive manual P 11 33.6441 103 -0.3 68
IV.ARRO.EHZ. 2023-04-19T19:21:23.20 0.6 undecidable manual S 199 15.0738 118 0.26 47
IV.FEMA.HNE. 2023-04-19T19:21:23.95 0.6 undecidable manual P 33 33.6441 103 0 48
IT.GNU.HGE. 2023-04-19T19:21:22.30 0.3 undecidable manual P 297 23.3544 109 0.32 69
IV.NRCA.HHZ. 2023-04-19T19:21:22.60 0.1 negative manual P 59 27.3504 106 -0.14 95
IV.LNSS.HHZ. 2023-04-19T19:21:21.66 1.0 negative manual P 123 21.0678 111 0.12 24
IV.CESX.HHZ. 2023-04-19T19:21:21.75 0.1 undecidable manual P 241 22.3554 110 -0.04 98
IV.MOMA.HHZ. 2023-04-19T19:21:21.96 1.0 undecidable manual P 297 23.3544 109 -0.02 24
IV.GAVE.EHZ. 2023-04-19T19:21:20.30 0.6 undecidable manual S 107 5.8941 144 -0.18 49
IV.ARRO.EHZ. 2023-04-19T19:21:20.81 0.6 positive manual P 199 15.0738 118 0.37 46
IV.GAVE.EHZ. 2023-04-19T19:21:19.08 0.1 negative manual P 107 5.8941 144 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.HNE. ML:0.0 0.0023671189999999996 0.1408 AML other m 2023-04-19T19:21:20.80
IV.GAVE.EHE. ML:0.0 0.0023794725000000003 0.1408 AML other m 2023-04-19T19:21:20.81
IV.ARRO.EHN. ML:1.6 0.00041749999999999996 0.36 AML other m 2023-04-19T19:21:24.23
IV.ARRO.EHE. ML:1.7 0.0004722006 0.2176 AML other m 2023-04-19T19:21:24.33
IV.LNSS.HHN. ML:1.8 0.00041349999999999997 1.12 AML other m 2023-04-19T19:21:26.77
IV.LNSS.HHE. ML:1.7 0.0003552274 0.1408 AML other m 2023-04-19T19:21:26.39
IV.NRCA.HHN. ML:1.4 0.00014050000000000003 0.38 AML other m 2023-04-19T19:21:28.74
IV.CESI.HHE. ML:1.6 0.000156 0.6 AML other m 2023-04-19T19:21:29.17
IV.NRCA.HHE. ML:1.5 0.000186 1.18 AML other m 2023-04-19T19:21:30.83
IV.ASSB.HHE. ML:1.4 0.0000908 1.1 AML other m 2023-04-19T19:21:31.63
IV.ASSB.HHN. ML:1.7 0.00016499999999999997 0.18 AML other m 2023-04-19T19:21:31.18
IV.CESI.HHN. ML:1.6 0.0001905 0.6 AML other m 2023-04-19T19:21:31.57
IV.FDMO.HHE. ML:1.6 0.00011615 0.8 AML other m 2023-04-19T19:21:31.48
IV.FDMO.HHN. ML:1.6 0.00011410000000000001 0.16 AML other m 2023-04-19T19:21:31.81
IV.RM33.EHE. ML:1.6 0.00013550000000000001 0.18 AML other m 2023-04-19T19:21:32.64
IV.MMO1.EHE. ML:1.3 0.000057050000000000004 0.26 AML other m 2023-04-19T19:21:34.13
IV.SMA1.EHN. ML:1.6 0.000126 0.28 AML other m 2023-04-19T19:21:34.29
IV.SMA1.EHE. ML:1.6 0.00011999999999999999 0.2 AML other m 2023-04-19T19:21:34.27
IV.MMO1.EHN. ML:1.4 0.00006435 0.42 AML other m 2023-04-19T19:21:34.59
IV.RM33.EHN. ML:1.4 0.0000844 1.36 AML other m 2023-04-19T19:21:34.27
IV.MML1.EHN. ML:1.4 0.00007795 1.16 AML other m 2023-04-19T19:21:35.01
IV.MML1.EHE. ML:1.5 0.00009565000000000001 1.34 AML other m 2023-04-19T19:21:35.15
IV.ATCC.EHE. ML:1.5 0.0000759 1.1 AML other m 2023-04-19T19:21:35.92
IV.ATCC.EHN. ML:1.5 0.00007775 0.3 AML other m 2023-04-19T19:21:36.04
IV.SNTG.HHE. ML:1.4 0.000045249999999999995 0.18 AML other m 2023-04-19T19:21:38.16
IV.SNTG.HHN. ML:1.2 0.0000314 0.14 AML other m 2023-04-19T19:21:39.70
IV.MGAB.HHE. ML:1.2 0.00003715 0.52 AML other m 2023-04-19T19:21:40.72
IV.GUMA.HHE. ML:1.7 0.000114 0.64 AML other m 2023-04-19T19:21:43.22
IV.MGAB.HHN. ML:1.4 0.000051250000000000006 0.36 AML other m 2023-04-19T19:21:43.46
IV.CING.HHN. ML:0.0 0.0000302 0.56 AML other m 2023-04-19T19:21:43.42
IV.CING.HHE. ML:0.0 0.00002375 0.58 AML other m 2023-04-19T19:21:43.50
IV.GUMA.HHN. ML:1.7 0.000104 0.4 AML other m 2023-04-19T19:21:45.19
IV.LNSS.HNE. ML:1.6 0.00031843295000000006 0.1664 AML other m 2023-04-19T19:21:25.98
IV.LNSS.HNN. ML:1.7 0.00033472765000000005 0.2304 AML other m 2023-04-19T19:21:27.01
IV.NRCA.HNE. ML:1.5 0.00018274075000000001 0.128 AML other m 2023-04-19T19:21:28.13
IV.NRCA.HNN. ML:1.6 0.00020044310999999999 0.3712 AML other m 2023-04-19T19:21:28.74
IV.CESI.HNE. ML:1.6 0.00015718880000000003 0.5888 AML other m 2023-04-19T19:21:29.18
IV.CESI.HNN. ML:1.7 0.00022158965 0.32 AML other m 2023-04-19T19:21:29.11
IV.RM33.HNN. ML:1.6 0.00014646834 0.64 AML other m 2023-04-19T19:21:33.83
IV.RM33.HNE. ML:1.5 0.000123691525 0.6528 AML other m 2023-04-19T19:21:32.55
IV.MML1.HNN. ML:1.6 0.000105774085 0.3456 AML other m 2023-04-19T19:21:33.99
IV.MML1.HNE. ML:1.6 0.000122563365 0.512 AML other m 2023-04-19T19:21:38.36
IV.EL6.EHN. ML:1.7 0.000086079885 0.2688 AML other m 2023-04-19T19:21:42.03
IV.EL6.EHE. ML:1.7 0.000085688975 0.3328 AML other m 2023-04-19T19:21:40.93
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