Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 24-03-2023 and time 15:28:40 (UTC) in region 1 km NE Scheggino (PG)

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

  • 24-03-2023 15:28:40 (UTC)
  • 24-03-2023 16:28:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7210, 12.8370 at 12 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 1 564 1025
Vallo di Nera PG 6 364 1389
Poggiodomo PG 8 117 1506
Spoleto PG 8 38218 39724
Ferentillo TR 12 1913 41637
Campello sul Clitunno PG 12 2442 44079
Monteleone di Spoleto PG 12 599 44678
Cerreto di Spoleto PG 13 1075 45753
Cascia PG 15 3217 48970
Montefranco TR 15 1276 50246
Polino TR 15 233 50479
Arrone TR 16 2763 53242
Castel Ritaldi PG 18 3278 56520
Trevi PG 19 8469 64989

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Terni (111501 inhabitants)
28 Km SE of Foligno (57155 inhabitants)
56 Km SE of Perugia (166134 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Viterbo (67173 inhabitants)
71 Km W of Teramo (54892 inhabitants)
81 Km N of Guidonia Montecelio (88673 inhabitants)
84 Km N of Tivoli (56533 inhabitants)
97 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 2023-03-24
15:28:40		 42.7213 12.8372 12 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124173831
Reviewed
Rev100 		ML 1.5 2023-03-24
15:28:41		 42.7222 12.8363 12 2023-03-24
15:43:04		 Sala Sismica INGV-Roma 115698771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-24 15:28:40 ± 0.04
Latitude 42.7213 ± 0.0018
Longitude 12.8372 ± 0.0024
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124173831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 94
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) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.36153
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 124173831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-21 12:29:32

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 115698771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-24 15:43:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2023-03-24T15:28:54.02 0.6 undecidable manual S 127 38.8278 92 0.22 46
7F.SIB1.EHN. 2023-03-24T15:28:54.49 0.6 undecidable manual S 61 40.1265 92 0.33 45
7F.SIB3.EHZ. 2023-03-24T15:28:54.05 0.3 undecidable manual S 64 39.1275 92 0.16 70
IV.ASSB.HHZ. 2023-03-24T15:28:53.83 0.3 undecidable manual S 338 38.4282 92 0.12 71
IV.CESI.HHZ. 2023-03-24T15:28:51.93 0.6 undecidable manual S 10 31.9458 93 -0.04 49
IV.CESX.HHZ. 2023-03-24T15:28:49.70 0.3 undecidable manual S 239 23.9538 96 -0.15 72
IV.LNSS.HHZ. 2023-03-24T15:28:49.04 0.6 undecidable manual S 128 21.1677 98 -0.07 49
IV.MOMA.HHZ. 2023-03-24T15:28:49.81 0.6 undecidable manual S 293 23.5542 96 0.06 49
IV.ASSB.HHZ. 2023-03-24T15:28:48.19 0.3 undecidable manual P 338 38.4282 92 -0.14 71
7F.SIB3.EHZ. 2023-03-24T15:28:48.21 0.3 undecidable manual P 64 39.1275 92 -0.22 69
IV.ARRO.EHZ. 2023-03-24T15:28:48.04 0.6 undecidable manual S 200 16.7721 104 0.07 49
IV.RM33.EHZ. 2023-03-24T15:28:48.24 0.3 undecidable manual P 127 38.8278 92 -0.14 71
7F.SIB1.EHN. 2023-03-24T15:28:48.48 0.1 undecidable manual P 61 40.1265 92 -0.11 95
IV.CESI.HHZ. 2023-03-24T15:28:47.23 0.1 undecidable manual P 10 31.9458 93 -0.09 96
IV.MOMA.HHZ. 2023-03-24T15:28:46.14 0.3 undecidable manual P 293 23.5542 96 0.1 73
IV.CESX.HHZ. 2023-03-24T15:28:46.14 0.3 undecidable manual P 239 23.9538 96 0.04 74
IV.LNSS.HHZ. 2023-03-24T15:28:45.65 0.1 undecidable manual P 128 21.1677 98 -0.02 100
IV.GAVE.EHZ. 2023-03-24T15:28:45.44 0.3 undecidable manual S 125 5.6943 148 -0.1 76
IV.ARRO.EHZ. 2023-03-24T15:28:45.14 0.1 undecidable manual P 200 16.7721 104 0.13 98
IV.GAVE.EHZ. 2023-03-24T15:28:43.72 0.1 undecidable manual P 125 5.6943 148 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.HNE. ML:2.0 0.001389 1.66 AML other m 2023-03-24T15:28:45.03
IV.GAVE.EHE. ML:2.0 0.0012749999999999999 1.66 AML other m 2023-03-24T15:28:45.03
IV.GAVE.EHN. ML:2.2 0.0019399999999999999 0.3 AML other m 2023-03-24T15:28:45.76
IV.GAVE.HNN. ML:1.6 0.000544 0.3 AML other m 2023-03-24T15:28:45.76
IV.ARRO.EHE. ML:1.5 0.0002775 0.24 AML other m 2023-03-24T15:28:48.28
IV.ARRO.EHN. ML:1.4 0.00021100000000000003 0.2 AML other m 2023-03-24T15:28:48.37
IV.LNSS.HHE. ML:1.7 0.000367 0.36 AML other m 2023-03-24T15:28:49.18
IV.LNSS.HNN. ML:1.7 0.0003037565 0.1664 AML other m 2023-03-24T15:28:49.34
IV.LNSS.HHN. ML:1.7 0.000345 0.3 AML other m 2023-03-24T15:28:49.35
IV.LNSS.HNE. ML:1.6 0.00028172965 0.1536 AML other m 2023-03-24T15:28:49.64
IV.MOMA.HHN. ML:0.5 0.000018599999999999998 1.18 AML other m 2023-03-24T15:28:50.64
IV.NRCA.HHE. ML:1.3 0.000117 0.82 AML other m 2023-03-24T15:28:50.61
IV.MOMA.HHE. ML:1.5 0.00019715525 0.1664 AML other m 2023-03-24T15:28:50.66
IV.CESX.HHN. ML:1.3 0.00011824999999999999 0.32 AML other m 2023-03-24T15:28:51.29
IV.CESX.HHE. ML:1.2 0.0001035 0.44 AML other m 2023-03-24T15:28:51.50
IV.NRCA.HHN. ML:1.3 0.00010745000000000001 0.12 AML other m 2023-03-24T15:28:52.11
IV.CESI.HHE. ML:1.3 0.000082539715 0.2048 AML other m 2023-03-24T15:28:52.31
IV.CESI.HHN. ML:1.7 0.0002385 0.16 AML other m 2023-03-24T15:28:52.49
IV.ASSB.HHE. ML:1.1 0.000045 0.12 AML other m 2023-03-24T15:28:54.18
IV.ASSB.HHN. ML:1.0 0.00003965 0.5 AML other m 2023-03-24T15:28:54.55
IV.RM33.EHE. ML:1.3 0.00007250000000000001 0.38 AML other m 2023-03-24T15:28:54.77
IV.RM33.EHN. ML:1.1 0.000041800000000000006 1.42 AML other m 2023-03-24T15:28:55.72
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