Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 29-08-2023 and time 17:13:49 (Italy) in region 3 km SE Sellano (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km SE Sellano (PG), on

  • 29-08-2023 15:13:49 (UTC)
  • 29-08-2023 17:13:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8690, 12.9400 at 10 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.

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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
Cerreto di Spoleto PG 6 1075 2154
Preci PG 8 724 2878
Vallo di Nera PG 13 364 3242
Visso MC 14 1107 4349
Campello sul Clitunno PG 14 2442 6791
Monte Cavallo MC 15 145 6936
Norcia PG 15 4957 11893
Trevi PG 16 8469 20362
Sant'Anatolia di Narco PG 17 564 20926
Poggiodomo PG 17 117 21043
Castelsantangelo sul Nera MC 18 281 21324
Cascia PG 18 3217 24541
Ussita MC 18 444 24985
Scheggino PG 19 461 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
52 Km SE of Perugia (166134 inhabitants)
67 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
85 Km NE of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
98 Km N of Guidonia Montecelio (88673 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 0.8 2023-08-29
15:13:49		 42.8687 12.9402 11 2023-08-29
15:37:38		 Sala Sismica INGV-Roma 120590831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-29 15:13:49 ± 0.05
Latitude 42.8687 ± 0.0027
Longitude 12.9402 ± 0.0049
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 120590831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 363
Semi-minor axis of confidence ellipse (meter) 219
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.12321
Epicentral distance of station farthest from the epicenter (degree) 0.38581
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 120590831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-29 15:37:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2023-08-29T15:14:00.50 0.6 undecidable manual S 41 32.745 50 0 49
IV.MOMA.HHZ. 2023-08-29T15:14:00.21 0.6 undecidable manual S 257 30.9468 50 0.2 48
IV.LNSS.HHZ. 2023-08-29T15:13:59.68 0.6 undecidable manual S 164 30.5472 50 -0.24 47
7F.SIB2.EHZ. 2023-08-29T15:13:59.65 0.6 undecidable manual S 85 29.6481 50 -0.03 49
IV.MML1.EHZ. 2023-08-29T15:13:58.93 0.6 undecidable manual S 5 27.2505 50 -0.11 49
IV.FDMO.HHZ. 2023-08-29T15:13:57.34 0.6 undecidable manual S 33 22.1556 115 -0.3 47
IV.SNTG.HHE. 2023-08-29T15:13:57.01 0.6 undecidable manual P 0 42.8238 50 -0.25 46
IV.MC2.EHZ. 2023-08-29T15:13:57.44 0.6 undecidable manual S 77 20.7681 117 0.22 48
IV.GAVE.EHZ. 2023-08-29T15:13:56.74 0.6 undecidable manual S 191 19.9689 118 -0.22 48
IV.GUMA.HHZ. 2023-08-29T15:13:56.65 0.1 undecidable manual P 56 38.628 50 0.04 97
IV.MOMA.HHZ. 2023-08-29T15:13:55.84 0.1 undecidable manual P 257 30.9468 50 0.42 91
IV.FEMA.HNZ. 2023-08-29T15:13:55.52 0.6 undecidable manual S 41 13.6752 127 0.4 47
IV.LNSS.HHZ. 2023-08-29T15:13:55.18 0.3 undecidable manual P 164 30.5472 50 -0.19 72
7F.SIB2.EHZ. 2023-08-29T15:13:55.41 0.3 undecidable manual P 85 29.6481 50 0.18 72
IV.CESI.HNZ. 2023-08-29T15:13:55.47 0.6 undecidable manual S 349 15.3735 124 -0.14 50
IV.CSP1.EHZ. 2023-08-29T15:13:55.66 0.1 undecidable manual P 41 32.745 50 -0.05 98
IV.NRCA.HHZ. 2023-08-29T15:13:55.36 0.6 undecidable manual S 105 14.6742 125 -0.05 50
IV.MML1.EHZ. 2023-08-29T15:13:54.63 0.6 undecidable manual P 5 27.2505 50 -0.23 48
IV.MC2.EHZ. 2023-08-29T15:13:54.10 0.6 undecidable manual P 77 20.7681 117 0.29 48
IV.GAVE.EHZ. 2023-08-29T15:13:53.54 0.3 undecidable manual P 191 19.9689 118 -0.12 74
IV.FDMO.HHZ. 2023-08-29T15:13:53.89 0.6 positive manual P 33 22.1556 115 -0.16 49
IV.NRCA.HHZ. 2023-08-29T15:13:52.90 0.6 positive manual P 105 14.6742 125 0.14 50
IV.FEMA.HNZ. 2023-08-29T15:13:52.75 1.0 undecidable manual P 41 13.6752 127 0.15 25
IV.CESI.HNZ. 2023-08-29T15:13:52.79 0.1 undecidable manual P 349 15.3735 124 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.9 0.00007225000000000001 0.08 AML other m 2023-08-29T15:13:55.83
IV.NRCA.HHN. ML:0.8 0.00006632803 0.1152 AML other m 2023-08-29T15:13:55.49
IV.GAVE.EHE. ML:1.0 0.00007531046999999999 0.1408 AML other m 2023-08-29T15:13:57.25
IV.GAVE.EHN. ML:0.9 0.000061952385 0.1664 AML other m 2023-08-29T15:13:57.33
IV.FDMO.HHE. ML:0.7 0.000034197765 0.1792 AML other m 2023-08-29T15:13:57.71
IV.FDMO.HHN. ML:0.7 0.000027816741499999998 0.1664 AML other m 2023-08-29T15:13:57.88
IV.MML1.EHE. ML:0.7 0.000022731388999999997 0.2432 AML other m 2023-08-29T15:13:59.31
IV.MML1.EHN. ML:0.8 0.00002889667 0.7296 AML other m 2023-08-29T15:13:55.56
IV.LNSS.HHE. ML:0.9 0.000034001175 0.7808 AML other m 2023-08-29T15:13:58.89
IV.LNSS.HHN. ML:0.9 0.000034027760000000004 1.1136 AML other m 2023-08-29T15:13:59.17
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