Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 08-03-2023 and time 10:29:59 (UTC) in region 3 km E Sellano (PG)

A magnitude ML 1.5 earthquake occured in region: 3 km E Sellano (PG), on

  • 08-03-2023 10:29:59 (UTC)
  • 08-03-2023 11:29:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8870, 12.9660 at 11 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
Sellano PG 3 1079 1079
Preci PG 6 724 1803
Cerreto di Spoleto PG 8 1075 2878
Visso MC 11 1107 3985
Monte Cavallo MC 12 145 4130
Norcia PG 15 4957 9087
Castelsantangelo sul Nera MC 15 281 9368
Ussita MC 16 444 9812
Vallo di Nera PG 16 364 10176
Campello sul Clitunno PG 17 2442 12618
Trevi PG 18 8469 21087
Pieve Torina MC 19 1458 22545
Cascia PG 19 3217 25762
Fiordimonte MC 20 202 25964
Poggiodomo PG 20 117 26081
Sant'Anatolia di Narco PG 20 564 26645

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
53 Km E of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
93 Km SW of Ancona (100861 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 2023-03-08
10:29:59		 42.8873 12.9662 11 2024-03-01
17:18:08		 Bollettino Sismico Italiano INGV 117403481
Reviewed
Rev100 		ML 1.5 2023-03-08
10:29:59		 42.8848 12.959 11 2023-03-08
10:39:34		 Sala Sismica INGV-Roma 115103691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-08 10:29:59 ± 0.04
Latitude 42.8873 ± 0.0018
Longitude 12.9662 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117403481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 196
Semi-minor axis of confidence ellipse (meter) 155
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.56477
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
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 117403481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-16 11:19:17

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 115103691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-08 10:39:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.HNE. 2023-03-08T10:30:14.40 0.3 undecidable manual S 154 46.62 50 0.24 67
IV.ATCC.EHZ. 2023-03-08T10:30:13.26 0.3 undecidable manual S 321 42.3243 50 0.25 67
IV.MF5.EHZ. 2023-03-08T10:30:12.43 0.6 undecidable manual S 74 41.625 50 -0.4 44
IV.SNTG.HHZ. 2023-03-08T10:30:12.87 0.6 undecidable manual S 357 40.8258 50 0.25 45
IV.PF6.EHN. 2023-03-08T10:30:10.70 0.6 undecidable manual S 34 33.3444 50 0.07 47
IV.LNSS.HHZ. 2023-03-08T10:30:10.09 0.3 undecidable manual S 169 32.1456 50 -0.21 70
IV.SSFR.HHZ. 2023-03-08T10:30:10.07 0.1 undecidable manual P 346 62.6928 50 -0.24 87
IV.MOMA.HNZ. 2023-03-08T10:30:10.88 0.6 undecidable manual S 254 33.5442 50 0.21 46
IV.CSP1.EHZ. 2023-03-08T10:30:09.77 0.3 undecidable manual S 40 29.8479 50 0.09 71
IV.MMO1.EHN. 2023-03-08T10:30:09.57 0.3 undecidable manual S 87 29.3484 50 0.02 72
IV.ASSB.HHZ. 2023-03-08T10:30:09.60 0.3 undecidable manual S 305 30.3474 50 -0.21 70
7F.SIB1.EHE. 2023-03-08T10:30:08.24 0.6 undecidable manual S 88 24.753 50 -0.08 48
7F.SIB2.EHE. 2023-03-08T10:30:08.89 0.3 undecidable manual S 89 27.4503 50 -0.16 71
IV.MML1.EHZ. 2023-03-08T10:30:08.44 0.3 undecidable manual S 1 25.0527 50 0.03 73
IV.RM33.HNE. 2023-03-08T10:30:08.01 0.3 undecidable manual P 154 46.62 50 0.17 68
IV.SMA1.EHN. 2023-03-08T10:30:07.37 0.6 undecidable manual P 133 41.4252 50 0.33 44
IV.ATCC.EHZ. 2023-03-08T10:30:07.16 0.6 positive manual P 321 42.3243 50 -0.01 47
IV.GAVE.EHZ. 2023-03-08T10:30:07.52 0.3 undecidable manual S 195 22.4553 50 -0.19 71
IV.MF5.EHZ. 2023-03-08T10:30:07.24 1.0 undecidable manual P 74 41.625 50 0.17 23
IV.SNTG.HHZ. 2023-03-08T10:30:06.90 0.1 negative manual P 357 40.8258 50 -0.05 95
IV.FDMO.HHZ. 2023-03-08T10:30:06.66 0.3 undecidable manual S 31 19.2696 119 -0.19 72
IV.MOMA.HNZ. 2023-03-08T10:30:06.20 0.3 undecidable manual P 254 33.5442 50 0.38 67
IV.MC2.EHZ. 2023-03-08T10:30:06.80 0.3 undecidable manual S 82 18.2706 120 0.23 71
IV.MMO1.EHN. 2023-03-08T10:30:05.18 0.1 undecidable manual P 87 29.3484 50 0 97
IV.ASSB.HHZ. 2023-03-08T10:30:05.12 0.6 undecidable manual P 305 30.3474 50 -0.2 47
IV.PF6.EHN. 2023-03-08T10:30:05.79 0.1 undecidable manual P 34 33.3444 50 -0.01 97
IV.NRCA.HNZ. 2023-03-08T10:30:05.12 0.6 undecidable manual S 116 13.4754 129 -0.06 49
IV.CSP1.EHZ. 2023-03-08T10:30:05.32 0.1 positive manual P 40 29.8479 50 0.07 96
IV.CESI.HHZ. 2023-03-08T10:30:05.19 0.3 undecidable manual S 339 13.9749 128 -0.12 73
IV.LNSS.HHZ. 2023-03-08T10:30:05.41 0.1 undecidable manual P 169 32.1456 50 -0.2 93
IV.MML1.EHZ. 2023-03-08T10:30:04.49 1.0 positive manual P 1 25.0527 50 -0.03 24
IT.MTCL.HGZ. 2023-03-08T10:30:04.62 0.6 undecidable manual S 13 12.0768 132 -0.2 48
IV.FEMA.HNE. 2023-03-08T10:30:04.58 0.3 undecidable manual S 39 10.6782 135 0.11 74
7F.SIB1.EHE. 2023-03-08T10:30:04.43 0.6 undecidable manual P 88 24.753 50 -0.03 49
7F.SIB2.EHE. 2023-03-08T10:30:04.88 0.1 positive manual P 89 27.4503 50 0 98
IV.GAVE.EHZ. 2023-03-08T10:30:04.00 0.1 undecidable manual P 195 22.4553 50 -0.11 96
IV.MC2.EHZ. 2023-03-08T10:30:03.62 0.1 undecidable manual P 82 18.2706 120 0.17 96
IV.FDMO.HHZ. 2023-03-08T10:30:03.63 0.1 positive manual P 31 19.2696 119 0.01 99
IV.CESI.HHZ. 2023-03-08T10:30:02.79 0.1 undecidable manual P 339 13.9749 128 0.06 99
IT.MTCL.HGZ. 2023-03-08T10:30:02.49 0.1 undecidable manual P 13 12.0768 132 0.04 100
IV.FEMA.HNE. 2023-03-08T10:30:02.22 0.3 undecidable manual P 39 10.6782 135 -0.02 75
IV.NRCA.HNZ. 2023-03-08T10:30:02.73 0.3 negative manual P 116 13.4754 129 0.08 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.0 0.001047 0.12 AML other m 2023-03-08T10:30:05.24
IV.NRCA.HNN. ML:2.0 0.0009895000000000001 0.18 AML other m 2023-03-08T10:30:05.39
IV.NRCA.HHE. ML:1.9 0.0008575000000000001 0.56 AML other m 2023-03-08T10:30:05.31
IV.NRCA.HNE. ML:1.9 0.0008615 0.56 AML other m 2023-03-08T10:30:05.31
IV.CESI.HHN. ML:1.7 0.0005075 0.4 AML other m 2023-03-08T10:30:05.49
IV.CESI.HHE. ML:1.4 0.000221 0.46 AML other m 2023-03-08T10:30:05.56
IV.FDMO.HHN. ML:1.4 0.00018099999999999998 1.52 AML other m 2023-03-08T10:30:06.85
IV.FDMO.HHE. ML:1.7 0.000397 1.6 AML other m 2023-03-08T10:30:07.87
IV.GAVE.EHN. ML:1.3 0.00012685 0.68 AML other m 2023-03-08T10:30:08.13
IV.MC2.EHE. ML:1.7 0.000383 0.24 AML other m 2023-03-08T10:30:08.32
IV.MC2.EHN. ML:1.7 0.0004055 0.22 AML other m 2023-03-08T10:30:08.71
IV.MML1.EHE. ML:1.4 0.0001535 0.2 AML other m 2023-03-08T10:30:08.77
IV.MML1.EHN. ML:1.1 0.00007375 0.26 AML other m 2023-03-08T10:30:08.82
IV.GAVE.EHE. ML:1.4 0.000176 0.12 AML other m 2023-03-08T10:30:08.83
IV.ASSB.HHE. ML:1.2 0.00007529999999999999 0.14 AML other m 2023-03-08T10:30:09.80
IV.CSP1.EHN. ML:1.6 0.0002095 0.68 AML other m 2023-03-08T10:30:10.10
IV.LNSS.HHN. ML:1.5 0.0001295 0.2 AML other m 2023-03-08T10:30:10.47
IV.ASSB.HHN. ML:1.3 0.00009005 0.8 AML other m 2023-03-08T10:30:10.02
IV.CSP1.EHE. ML:1.8 0.0003145 0.22 AML other m 2023-03-08T10:30:10.54
IV.LNSS.HHE. ML:1.4 0.0001205 0.12 AML other m 2023-03-08T10:30:10.51
IV.SNTG.HHN. ML:1.0 0.000033799999999999995 0.48 AML other m 2023-03-08T10:30:13.04
IV.SNTG.HHE. ML:1.0 0.000030200000000000002 1.02 AML other m 2023-03-08T10:30:13.54
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