Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 16-08-2023 and time 13:39:29 (Italy) in region 2 km E Vallo di Nera (PG)

A magnitude ML 2.0 earthquake occured in region: 2 km E Vallo di Nera (PG), on

  • 16-08-2023 11:39:29 (UTC)
  • 16-08-2023 13:39:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7710, 12.8900 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.

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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
Vallo di Nera PG 2 364 364
Cerreto di Spoleto PG 6 1075 1439
Sant'Anatolia di Narco PG 6 564 2003
Poggiodomo PG 8 117 2120
Scheggino PG 8 461 2581
Campello sul Clitunno PG 11 2442 5023
Cascia PG 12 3217 8240
Spoleto PG 13 38218 46458
Sellano PG 14 1079 47537
Monteleone di Spoleto PG 14 599 48136
Trevi PG 17 8469 56605
Norcia PG 17 4957 61562
Preci PG 17 724 62286
Ferentillo TR 19 1913 64199
Castel Ritaldi PG 19 3278 67477

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Foligno (57155 inhabitants)
31 Km NE of Terni (111501 inhabitants)
55 Km SE of Perugia (166134 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
68 Km W of Teramo (54892 inhabitants)
75 Km NE of Viterbo (67173 inhabitants)
87 Km N of Guidonia Montecelio (88673 inhabitants)
90 Km N of Tivoli (56533 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 2.0 2023-08-16
11:39:29		 42.7713 12.8902 11 2023-08-16
11:46:07		 Sala Sismica INGV-Roma 120180281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-16 11:39:29 ± 0.05
Latitude 42.7713 ± 0.0018
Longitude 12.8902 ± 0.0074
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120180281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 630
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 270
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 59
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.76622
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 25
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 68
Type of magnitude ML
Reference to an origin 120180281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-16 11:46:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GSCL.HHZ. 2023-08-16T11:40:41.05 3.0 undecidable manual Sg 6.57 0
IV.ZCCA.HHZ. 2023-08-16T11:40:32.06 3.0 undecidable manual Sn 2.39 0
IV.SGO.HHZ. 2023-08-16T11:40:12.42 3.0 undecidable manual Pn -0.89 0
IV.PAOL.HNZ. 2023-08-16T11:40:04.35 3.0 undecidable manual Pn 0.83 0
IV.MPAG.EHZ. 2023-08-16T11:39:59.55 3.0 undecidable manual S 0.37 0
IV.ATFO.HHZ. 2023-08-16T11:39:51.61 0.6 undecidable manual S 339 70.8735 90 1.08 33
IV.CING.HHZ. 2023-08-16T11:39:51.26 1.0 undecidable manual S 20 71.4729 90 0.58 20
IV.GIGS.HHZ. 2023-08-16T11:39:49.05 0.6 undecidable manual S 122 65.9895 90 -0.16 45
IV.MURB.HHZ. 2023-08-16T11:39:49.00 0.3 undecidable manual S 332 62.0934 90 0.83 56
IV.PARC.HHZ. 2023-08-16T11:39:48.52 3.0 undecidable manual P 0.74 0
IV.FIAM.HHZ. 2023-08-16T11:39:47.29 0.6 undecidable manual S 162 58.7967 90 -0.02 47
IV.FOSV.EHZ. 2023-08-16T11:39:47.80 0.6 undecidable manual S 350 58.9965 90 0.44 43
IV.TERO.HHZ. 2023-08-16T11:39:47.60 0.6 undecidable manual S 106 60.495 90 -0.14 46
IV.MF5.EHZ. 2023-08-16T11:39:46.32 0.6 undecidable manual S 62 52.2033 90 0.79 39
IV.CAFI.HHZ. 2023-08-16T11:39:46.70 3.0 positive manual P 0.57 0
IV.NARO.HHZ. 2023-08-16T11:39:45.20 3.0 positive manual P -0.76 0
IV.CAMP.HHZ. 2023-08-16T11:39:45.15 3.0 undecidable manual S -0.54 0
IV.ATCC.EHZ. 2023-08-16T11:39:45.68 0.6 undecidable manual S 336 50.2164 90 0.68 40
IV.MPAG.EHZ. 2023-08-16T11:39:45.42 3.0 positive manual P -0.42 0
IV.PIEI.HHZ. 2023-08-16T11:39:43.41 3.0 undecidable manual P -1.41 0
IV.CSP1.EHZ. 2023-08-16T11:39:43.42 0.6 undecidable manual S 36 43.8228 90 0.13 47
IV.ATMI.HHZ. 2023-08-16T11:39:43.63 0.1 undecidable manual P 321 80.2641 90 0.69 75
IV.ATPI.EHZ. 2023-08-16T11:39:43.30 0.1 undecidable manual P 333 85.0482 90 -0.38 83
IV.SMA1.EHZ. 2023-08-16T11:39:42.80 0.6 undecidable manual S 113 39.5271 90 0.65 42
IV.MML1.EHZ. 2023-08-16T11:39:42.01 0.6 undecidable manual S 10 38.5281 90 0.12 48
IV.SACS.HNZ. 2023-08-16T11:39:42.71 0.3 undecidable manual P 277 80.2641 90 -0.23 65
IV.RM33.EHZ. 2023-08-16T11:39:42.22 0.6 undecidable manual S 138 39.3273 90 0.12 48
IV.CING.HHZ. 2023-08-16T11:39:41.41 0.3 positive manual P 20 71.4729 90 -0.17 67
IV.ARVD.HHZ. 2023-08-16T11:39:41.50 3.0 positive manual P -1.84 0
IV.MMO1.EHZ. 2023-08-16T11:39:41.71 0.6 undecidable manual S 68 38.2284 90 -0.11 48
IV.ATFO.HHZ. 2023-08-16T11:39:41.37 0.1 undecidable manual P 339 70.8735 90 -0.12 90
IV.ASSB.HHZ. 2023-08-16T11:39:40.98 0.6 undecidable manual S 328 35.5422 90 -0.09 49
IV.MURB.HHZ. 2023-08-16T11:39:40.16 0.1 positive manual P 332 62.0934 90 0.03 94
IV.GIGS.HHZ. 2023-08-16T11:39:40.19 1.0 undecidable manual P 122 65.9895 90 -0.54 21
IV.FDMO.HHZ. 2023-08-16T11:39:40.21 0.6 undecidable manual S 29 33.5442 90 -0.33 46
IV.TERO.HHZ. 2023-08-16T11:39:39.56 0.6 negative manual P 106 60.495 90 -0.32 44
IV.FOSV.EHZ. 2023-08-16T11:39:39.48 0.3 undecidable manual P 350 58.9965 90 -0.18 69
IV.ATCC.EHZ. 2023-08-16T11:39:38.15 0.6 positive manual P 336 50.2164 90 -0.15 47
IV.MF5.EHZ. 2023-08-16T11:39:38.83 0.6 positive manual P 62 52.2033 90 0.22 46
IV.CESI.HHZ. 2023-08-16T11:39:38.59 0.6 undecidable manual S 3 25.9518 90 0.06 50
IV.FIAM.HHZ. 2023-08-16T11:39:38.97 1.0 positive manual P 162 58.7967 90 -0.66 20
IV.MOMA.HHZ. 2023-08-16T11:39:38.57 0.6 undecidable manual S 278 26.2515 90 -0.05 50
IV.ARRO.EHZ. 2023-08-16T11:39:37.31 0.6 undecidable manual S 206 23.5542 90 -0.59 44
IV.CSP1.EHZ. 2023-08-16T11:39:37.14 0.1 positive manual P 36 43.8228 90 -0.17 94
IV.LNSS.HHZ. 2023-08-16T11:39:37.41 0.6 undecidable manual S 147 22.3554 90 -0.15 49
IV.MMO1.EHZ. 2023-08-16T11:39:36.33 0.1 undecidable manual P 68 38.2284 90 -0.13 96
IV.RM33.EHZ. 2023-08-16T11:39:36.40 0.1 positive manual P 138 39.3273 90 -0.23 94
IV.SMA1.EHZ. 2023-08-16T11:39:36.86 0.1 undecidable manual P 113 39.5271 90 0.21 94
IV.NRCA.HNZ. 2023-08-16T11:39:36.68 0.6 undecidable manual S 69 19.4694 90 -0.13 49
IV.MML1.EHZ. 2023-08-16T11:39:36.33 0.1 positive manual P 10 38.5281 90 -0.17 95
IV.FDMO.HHZ. 2023-08-16T11:39:35.55 0.1 positive manual P 29 33.5442 90 -0.18 96
IV.ASSB.HHZ. 2023-08-16T11:39:35.77 0.1 positive manual P 328 35.5422 90 -0.26 94
IV.MOMA.HHZ. 2023-08-16T11:39:34.59 0.1 negative manual P 278 26.2515 90 -0.03 100
IV.GAVE.EHZ. 2023-08-16T11:39:34.52 0.6 undecidable manual S 178 8.7801 126 0.47 47
IV.ARRO.EHZ. 2023-08-16T11:39:34.11 0.1 positive manual P 206 23.5542 90 -0.09 99
IV.CESI.HHZ. 2023-08-16T11:39:34.52 0.1 positive manual P 3 25.9518 90 -0.04 100
IV.NRCA.HNZ. 2023-08-16T11:39:33.48 0.1 undecidable manual P 69 19.4694 90 -0.09 100
IV.LNSS.HHZ. 2023-08-16T11:39:33.90 0.1 positive manual P 147 22.3554 90 -0.11 99
IV.GAVE.EHZ. 2023-08-16T11:39:32.33 0.1 positive manual P 178 8.7801 126 0.35 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.HNN. ML:2.5 0.004055 0.36 AML other m 2023-08-16T11:39:34.77
IV.GAVE.EHN. ML:3.1 0.014899999999999998 0.36 AML other m 2023-08-16T11:39:34.77
IV.GAVE.HNE. ML:3.1 0.016550000000000002 0.8 AML other m 2023-08-16T11:39:34.98
IV.GAVE.EHE. ML:3.1 0.0162 0.82 AML other m 2023-08-16T11:39:34.99
IV.NRCA.HNN. ML:2.6 0.002605 0.14 AML other m 2023-08-16T11:39:36.86
IV.NRCA.HHN. ML:2.6 0.0028250000000000003 0.14 AML other m 2023-08-16T11:39:36.86
IV.NRCA.HHE. ML:2.3 0.00145 1.28 AML other m 2023-08-16T11:39:37.05
IV.NRCA.HNE. ML:2.3 0.00141 1.02 AML other m 2023-08-16T11:39:37.05
IV.ARRO.EHE. ML:1.9 0.000512 0.82 AML other m 2023-08-16T11:39:38.08
IV.LNSS.HHE. ML:2.4 0.00161 0.16 AML other m 2023-08-16T11:39:38.38
IV.LNSS.HHN. ML:2.4 0.00181 0.2 AML other m 2023-08-16T11:39:38.64
IV.ARRO.EHN. ML:2.0 0.000609 0.16 AML other m 2023-08-16T11:39:38.89
IV.CESI.HHN. ML:2.4 0.0014750000000000002 1.1 AML other m 2023-08-16T11:39:38.30
IV.CESI.HNN. ML:2.4 0.001375 1.12 AML other m 2023-08-16T11:39:38.30
IV.CESI.HHE. ML:2.4 0.0014650000000000002 0.18 AML other m 2023-08-16T11:39:39.13
IV.CESI.HNE. ML:2.4 0.00133 0.18 AML other m 2023-08-16T11:39:39.13
IV.MOMA.HNE. ML:2.2 0.0009170000000000001 0.24 AML other m 2023-08-16T11:39:39.33
IV.MOMA.HHE. ML:2.3 0.0010190000000000002 0.24 AML other m 2023-08-16T11:39:39.33
IV.MOMA.HHN. ML:1.9 0.00047599999999999997 0.2 AML other m 2023-08-16T11:39:40.31
IV.FDMO.HHE. ML:2.3 0.0008285 0.42 AML other m 2023-08-16T11:39:40.81
IV.FDMO.HHN. ML:2.2 0.000754 0.18 AML other m 2023-08-16T11:39:40.75
IV.MOMA.HNN. ML:2.0 0.000492 0.46 AML other m 2023-08-16T11:39:41.51
IV.ASSB.HHN. ML:2.0 0.00040800000000000005 0.16 AML other m 2023-08-16T11:39:41.57
IV.ASSB.HHE. ML:2.1 0.000492 0.5 AML other m 2023-08-16T11:39:41.77
IV.MMO1.EHE. ML:2.1 0.000495 0.18 AML other m 2023-08-16T11:39:42.42
IV.MML1.EHN. ML:2.0 0.000348 0.6 AML other m 2023-08-16T11:39:42.57
IV.MML1.EHE. ML:2.3 0.0006665 0.42 AML other m 2023-08-16T11:39:42.36
IV.MML1.HNN. ML:2.0 0.0003285 0.24 AML other m 2023-08-16T11:39:42.57
IV.MML1.HNE. ML:2.3 0.00065 0.42 AML other m 2023-08-16T11:39:42.57
IV.RM33.EHN. ML:2.0 0.00039 0.24 AML other m 2023-08-16T11:39:42.56
IV.MMO1.EHN. ML:2.1 0.0004305 0.34 AML other m 2023-08-16T11:39:42.86
IV.RM33.EHE. ML:2.1 0.00044500000000000003 0.66 AML other m 2023-08-16T11:39:43.35
IV.CSP1.EHE. ML:2.4 0.0008045 0.58 AML other m 2023-08-16T11:39:44.56
IV.CSP1.EHN. ML:2.3 0.0006675 0.72 AML other m 2023-08-16T11:39:45.53
IV.SMA1.EHE. ML:2.0 0.00033699999999999995 0.56 AML other m 2023-08-16T11:39:45.36
IV.ATCC.EHN. ML:2.0 0.000285 0.32 AML other m 2023-08-16T11:39:46.00
IV.SMA1.EHN. ML:1.9 0.0002915 1.32 AML other m 2023-08-16T11:39:46.01
IV.ATCC.EHE. ML:2.0 0.00029099999999999997 0.58 AML other m 2023-08-16T11:39:46.31
IV.CAMP.HHE. ML:1.4 0.0000698 1.48 AML other m 2023-08-16T11:39:47.11
IV.MF5.EHE. ML:1.8 0.0001735 0.48 AML other m 2023-08-16T11:39:48.58
IV.TERO.HHE. ML:1.6 0.00007505000000000001 0.34 AML other m 2023-08-16T11:39:48.61
IV.FOSV.EHE. ML:1.5 0.0000655 0.16 AML other m 2023-08-16T11:39:49.05
IV.MURB.HHE. ML:2.5 0.0006065 1.5 AML other m 2023-08-16T11:39:50.21
IV.CAMP.HHN. ML:1.4 0.0000639 0.74 AML other m 2023-08-16T11:39:50.71
IV.FIAM.HHN. ML:1.6 0.00008774999999999999 0.8 AML other m 2023-08-16T11:39:50.17
IV.MURB.HHN. ML:2.2 0.00033800000000000003 0.84 AML other m 2023-08-16T11:39:50.62
IV.GIGS.HHE. ML:1.1 0.000025099999999999997 0.42 AML other m 2023-08-16T11:39:50.43
IV.MF5.EHN. ML:1.8 0.00017199999999999998 0.42 AML other m 2023-08-16T11:39:50.73
IV.FOSV.EHN. ML:1.7 0.0000932 0.96 AML other m 2023-08-16T11:39:51.50
IV.TERO.HHN. ML:1.6 0.00008915000000000001 1.48 AML other m 2023-08-16T11:39:51.81
IV.GIGS.HHN. ML:1.2 0.00002755 0.78 AML other m 2023-08-16T11:39:51.83
IV.FIAM.HHE. ML:1.5 0.0000663 1.36 AML other m 2023-08-16T11:39:52.19
IV.CING.HHN. ML:1.7 0.00007495 0.12 AML other m 2023-08-16T11:39:52.74
IV.ATFO.HHE. ML:1.8 0.000105 0.3 AML other m 2023-08-16T11:39:55.82
IV.CING.HHE. ML:1.6 0.00006925 0.56 AML other m 2023-08-16T11:39:56.33
IV.ATFO.HHN. ML:1.8 0.0000927 0.68 AML other m 2023-08-16T11:39:56.71
IV.ATMI.HHE. ML:2.1 0.00017199999999999998 0.78 AML other m 2023-08-16T11:39:56.81
IV.SACS.HHE. ML:1.3 0.00002395 1.48 AML other m 2023-08-16T11:39:57.00
IV.ATMI.HHN. ML:2.0 0.0001305 0.6 AML other m 2023-08-16T11:39:58.84
IV.NARO.HHE. ML:1.4 0.00002295 0.78 AML other m 2023-08-16T11:39:59.32
IV.SACS.HHN. ML:1.3 0.00002845 0.36 AML other m 2023-08-16T11:39:59.85
IV.CAFI.HHN. ML:1.5 0.000030350000000000002 0.58 AML other m 2023-08-16T11:40:00.79
IV.CAFI.HHE. ML:1.5 0.00002815 1.58 AML other m 2023-08-16T11:40:01.80
IV.NARO.HHN. ML:1.3 0.0000223 1.2 AML other m 2023-08-16T11:40:03.71
IV.MPAG.EHE. ML:1.4 0.00003095 1.7 AML other m 2023-08-16T11:40:05.88
IV.PARC.HHN. ML:1.5 0.000026349999999999997 1.4 AML other m 2023-08-16T11:40:06.71
IV.PARC.HHE. ML:1.5 0.00002425 0.74 AML other m 2023-08-16T11:40:09.42
IV.MPAG.EHN. ML:1.4 0.000024449999999999998 0.8 AML other m 2023-08-16T11:40:09.98
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
Waveforms Seismic signals in miniseed + resp format Download