Earthquake with magnitude of ML 1.7 on date 31-03-2023 and time 10:29:27 (UTC) in region 6 km NW Sellano (PG)

A magnitude ML 1.7 earthquake occured in region: 6 km NW Sellano (PG), on

  • 31-03-2023 10:29:27 (UTC)
  • 31-03-2023 12:29:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9200, 12.8680 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.

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 6 1079 1079
Trevi PG 11 8469 9548
Cerreto di Spoleto PG 12 1075 10623
Campello sul Clitunno PG 13 2442 13065
Monte Cavallo MC 14 145 13210
Foligno PG 14 57155 70365
Preci PG 15 724 71089
Vallo di Nera PG 17 364 71453
Montefalco PG 18 5679 77132
Spello PG 18 8645 85777
Visso MC 18 1107 86884
Valtopina PG 18 1398 88282
Serravalle di Chienti MC 18 1070 89352
Castel Ritaldi PG 19 3278 92630

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
44 Km E of Perugia (166134 inhabitants)
74 Km W of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
94 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 1.7 2023-03-31
10:29:27
42.92 12.8682 11 2024-03-01
17:18:10
Bollettino Sismico Italiano INGV 117739601
Reviewed
Rev100
ML 1.7 2023-03-31
10:29:27
42.9202 12.8663 12 2023-03-31
10:35:55
Sala Sismica INGV-Roma 115910421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-31 10:29:27 ± 0.04
Latitude 42.9200 ± 0.0018
Longitude 12.8682 ± 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 117739601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 201
Semi-minor axis of confidence ellipse (meter) 181
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
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) 50
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 30
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44337
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 117739601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-26 10:50:41

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 115910421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-31 10:35:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2023-03-31T10:29:48.69 3.0 undecidable manual S -0.34 0
IV.ARVD.HHZ. 2023-03-31T10:29:47.83 3.0 undecidable manual S -0.43 0
IV.SSFR.HHZ. 2023-03-31T10:29:46.49 3.0 undecidable manual S 0.13 0
IV.EL6.EHZ. 2023-03-31T10:29:43.55 0.6 undecidable manual S 23 49.2174 90 0.56 43
IV.ARRO.EHZ. 2023-03-31T10:29:40.28 0.6 undecidable manual S 192 38.7279 91 0.09 48
IV.LNSS.HHZ. 2023-03-31T10:29:39.92 0.6 undecidable manual S 158 37.8288 91 -0.05 49
IV.SNTG.HHZ. 2023-03-31T10:29:39.92 0.6 undecidable manual S 9 37.629 91 0.02 49
IV.ATCC.EHZ. 2023-03-31T10:29:39.21 0.6 undecidable manual S 328 34.743 91 0.08 49
IV.CSP1.EHZ. 2023-03-31T10:29:38.95 0.3 undecidable manual S 55 33.3444 91 0.2 72
IV.MOMA.HHZ. 2023-03-31T10:29:37.44 0.6 undecidable manual S 242 27.4503 91 0.26 47
IV.EL6.EHZ. 2023-03-31T10:29:36.34 0.1 positive manual P 23 49.2174 90 -0.06 95
IV.GAVE.HNE. 2023-03-31T10:29:36.52 0.3 undecidable manual S 175 25.3524 91 -0.11 74
IV.FDMO.HHZ. 2023-03-31T10:29:35.42 0.3 undecidable manual S 54 21.9669 91 -0.31 71
IV.NRCA.HHZ. 2023-03-31T10:29:35.66 0.3 undecidable manual S 116 22.1556 91 -0.12 74
IV.MML1.EHZ. 2023-03-31T10:29:35.92 0.3 undecidable manual S 21 23.0547 91 -0.09 74
IV.ASSB.HHZ. 2023-03-31T10:29:35.34 0.3 undecidable manual S 309 21.7671 92 -0.33 71
IV.SNTG.HHZ. 2023-03-31T10:29:34.35 0.6 undecidable manual P 9 37.629 91 -0.27 46
IV.ATCC.EHZ. 2023-03-31T10:29:34.16 0.1 undecidable manual P 328 34.743 91 -0.01 98
IV.LNSS.HHZ. 2023-03-31T10:29:34.65 0.3 undecidable manual P 158 37.8288 91 -0.01 74
IV.ARRO.EHZ. 2023-03-31T10:29:34.81 0.6 undecidable manual P 192 38.7279 91 0.02 49
IV.CSP1.EHZ. 2023-03-31T10:29:33.95 0.1 positive manual P 55 33.3444 91 0 99
IT.FOPC.HGE. 2023-03-31T10:29:33.87 0.3 undecidable manual S 292 14.4744 98 0.14 74
IV.FEMA.HNZ. 2023-03-31T10:29:33.97 0.3 undecidable manual S 72 15.4734 96 -0.02 76
IV.MML1.EHZ. 2023-03-31T10:29:32.33 0.1 undecidable manual P 21 23.0547 91 -0.05 100
IV.CESI.HHZ. 2023-03-31T10:29:32.51 0.3 undecidable manual S 17 9.879 122 -0.07 77
IV.ASSB.HHZ. 2023-03-31T10:29:32.02 0.1 undecidable manual P 309 21.7671 92 -0.16 98
IV.FDMO.HHZ. 2023-03-31T10:29:32.13 0.1 undecidable manual P 54 21.9669 91 -0.08 99
IV.GAVE.HNE. 2023-03-31T10:29:32.69 0.3 undecidable manual P 175 25.3524 91 -0.04 75
IV.NRCA.HHZ. 2023-03-31T10:29:32.18 0.1 positive manual P 116 22.1556 91 -0.06 100
IV.MOMA.HHZ. 2023-03-31T10:29:32.93 0.1 undecidable manual P 242 27.4503 91 -0.12 98
IV.FEMA.HNZ. 2023-03-31T10:29:31.34 0.1 undecidable manual P 72 15.4734 96 0.13 99
IT.FOPC.HGE. 2023-03-31T10:29:31.07 0.3 undecidable manual P 292 14.4744 98 0.01 76
IV.CESI.HHZ. 2023-03-31T10:29:30.50 0.1 undecidable manual P 17 9.879 122 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:2.0 0.001335 0.26 AML other m 2023-03-31T10:29:32.83
IV.CESI.HNN. ML:2.0 0.001305459 0.256 AML other m 2023-03-31T10:29:32.84
IV.CESI.HHE. ML:2.0 0.0010609999999999999 1.68 AML other m 2023-03-31T10:29:32.86
IV.FEMA.HNE. ML:2.1 0.0011623192499999999 0.1664 AML other m 2023-03-31T10:29:34.73
IV.FEMA.HNN. ML:1.9 0.00079648345 0.1984 AML other m 2023-03-31T10:29:35.09
IV.FDMO.HHE. ML:1.6 0.000236 0.24 AML other m 2023-03-31T10:29:35.81
IV.NRCA.HHN. ML:2.0 0.000608 1.36 AML other m 2023-03-31T10:29:35.83
IV.NRCA.HHE. ML:1.9 0.0005935000000000001 0.76 AML other m 2023-03-31T10:29:35.91
IV.MML1.EHN. ML:1.6 0.0002645 0.66 AML other m 2023-03-31T10:29:36.24
IV.FDMO.HHN. ML:1.5 0.0001885 0.14 AML other m 2023-03-31T10:29:36.24
IV.MML1.EHE. ML:1.7 0.00028500000000000004 0.16 AML other m 2023-03-31T10:29:36.25
IV.ASSB.HHE. ML:1.6 0.000252 1.14 AML other m 2023-03-31T10:29:36.86
IV.ASSB.HHN. ML:1.6 0.0002545 0.22 AML other m 2023-03-31T10:29:37.41
IV.CSP1.EHE. ML:1.9 0.00035 1.26 AML other m 2023-03-31T10:29:39.94
IV.CSP1.EHN. ML:1.8 0.0002595 0.28 AML other m 2023-03-31T10:29:39.73
IV.ATCC.EHN. ML:1.4 0.00010170000000000002 0.64 AML other m 2023-03-31T10:29:40.85
IV.LNSS.HHN. ML:1.4 0.00009595 0.32 AML other m 2023-03-31T10:29:41.47
IV.ATCC.EHE. ML:1.3 0.0000825 0.16 AML other m 2023-03-31T10:29:41.70
IV.LNSS.HHE. ML:1.5 0.00010320000000000001 0.56 AML other m 2023-03-31T10:29:42.70
IV.SSFR.HHN. ML:1.4 0.000058700000000000004 1.56 AML other m 2023-03-31T10:29:47.89
IV.SSFR.HHE. ML:1.4 0.00005925 0.86 AML other m 2023-03-31T10:29:47.43
IV.ARVD.HHE. ML:1.0 0.000019764503999999998 0.2624 AML other m 2023-03-31T10:29:48.31
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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