Earthquake with magnitude of ML 1.3 on date 22-08-2023 and time 17:54:05 (UTC) in region 6 km NE Sellano (PG)

A magnitude ML 1.3 earthquake occured in region: 6 km NE Sellano (PG), on

  • 22-08-2023 17:54:05 (UTC)
  • 22-08-2023 19:54:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9340, 12.9590 at 11 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.

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
Monte Cavallo MC 8 145 1224
Preci PG 9 724 1948
Visso MC 11 1107 3055
Cerreto di Spoleto PG 13 1075 4130
Pieve Torina MC 15 1458 5588
Ussita MC 15 444 6032
Serravalle di Chienti MC 15 1070 7102
Fiordimonte MC 16 202 7304
Castelsantangelo sul Nera MC 17 281 7585
Pievebovigliana MC 18 866 8451
Muccia MC 18 915 9366
Trevi PG 18 8469 17835
Norcia PG 19 4957 22792
Campello sul Clitunno PG 19 2442 25234
Fiastra MC 20 559 25793
Vallo di Nera PG 20 364 26157

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
50 Km E of Perugia (166134 inhabitants)
68 Km W of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 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 1.3 2023-08-22
17:54:05
42.9343 12.9588 11 2023-08-22
18:01:39
Sala Sismica INGV-Roma 120389531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-22 17:54:05 ± 0.05
Latitude 42.9343 ± 0.0018
Longitude 12.9588 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120389531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 93
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26620
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 120389531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-22 18:01:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRE.HHZ. 2023-08-22T17:54:36.46 3.0 undecidable manual S -3.53 0
IV.PF6.EHZ. 2023-08-22T17:54:15.59 0.3 undecidable manual S 40 29.5482 50 0.01 73
IV.CSP1.EHZ. 2023-08-22T17:54:14.72 0.3 undecidable manual S 49 26.5512 50 -0.04 73
IV.GAVE.EHE. 2023-08-22T17:54:14.99 0.3 undecidable manual S 191 27.3504 50 0 74
IV.ATCC.EHZ. 2023-08-22T17:54:12.49 3.0 positive manual P 0.01 0
IV.MML1.EHZ. 2023-08-22T17:54:12.89 0.3 undecidable manual S 3 19.869 50 -0.1 73
IV.FDMO.HHZ. 2023-08-22T17:54:11.56 0.1 undecidable manual S 43 15.3735 125 -0.18 97
IV.NRCA.HHZ. 2023-08-22T17:54:11.98 0.3 undecidable manual S 131 16.872 123 -0.19 72
IV.PF6.EHZ. 2023-08-22T17:54:11.21 0.3 undecidable manual P 40 29.5482 50 0.02 73
IV.ASSB.HHZ. 2023-08-22T17:54:10.56 3.0 undecidable manual P -0.06 0
IV.GAVE.EHE. 2023-08-22T17:54:10.77 0.3 undecidable manual P 191 27.3504 50 -0.08 73
IV.CSP1.EHZ. 2023-08-22T17:54:10.86 0.1 undecidable manual P 49 26.5512 50 0.14 96
IV.MML1.EHZ. 2023-08-22T17:54:09.67 0.1 undecidable manual P 3 19.869 50 -0.03 99
IV.CESI.HHE. 2023-08-22T17:54:09.97 0.1 undecidable manual S 331 8.9799 141 -0.13 99
IV.FEMA.HNZ. 2023-08-22T17:54:09.98 0.3 undecidable manual S 67 7.9809 144 0.09 75
IV.FDMO.HHZ. 2023-08-22T17:54:09.03 0.6 positive manual P 43 15.3735 125 0.06 50
IV.NRCA.HHZ. 2023-08-22T17:54:09.20 0.1 undecidable manual P 131 16.872 123 -0.02 100
IV.CESI.HHE. 2023-08-22T17:54:08.14 0.1 undecidable manual P 331 8.9799 141 0.12 99
IV.FEMA.HNZ. 2023-08-22T17:54:08.17 0.1 undecidable manual P 67 7.9809 144 0.27 96
IV.MC2.EHZ. 2023-08-22T17:54:04.70 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.1 0.000105 0.42 AML other m 2023-08-22T17:54:11.68
IV.FDMO.HHN. ML:1.1 0.00011119999999999999 0.18 AML other m 2023-08-22T17:54:11.77
IV.NRCA.HHN. ML:1.7 0.0003785 0.14 AML other m 2023-08-22T17:54:12.14
IV.NRCA.HHE. ML:1.6 0.00032900000000000003 0.14 AML other m 2023-08-22T17:54:12.32
IV.MML1.EHE. ML:1.2 0.00011249999999999998 0.2 AML other m 2023-08-22T17:54:13.19
IV.MML1.EHN. ML:0.9 0.00005695 0.74 AML other m 2023-08-22T17:54:13.28
IV.CSP1.EHE. ML:1.4 0.0001316 0.54 AML other m 2023-08-22T17:54:15.66
IV.CSP1.EHN. ML:1.4 0.00014350000000000002 0.72 AML other m 2023-08-22T17:54:15.99
IV.CRE.HHE. ML:1.4 0.0000194 0.5 AML other m 2023-08-22T17:54:39.47
IV.CRE.HHN. ML:1.2 0.0000143 0.78 AML other m 2023-08-22T17:54:39.54
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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