Earthquake with magnitude of ML 0.9 on date 15-05-2023 and time 20:26:47 (Italy) in region 5 km E Vallo di Nera (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km E Vallo di Nera (PG), on

  • 15-05-2023 18:26:47 (UTC)
  • 15-05-2023 20:26:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7720, 12.9270 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
Vallo di Nera PG 5 364 364
Cerreto di Spoleto PG 5 1075 1439
Poggiodomo PG 7 117 1556
Sant'Anatolia di Narco PG 9 564 2120
Cascia PG 9 3217 5337
Scheggino PG 10 461 5798
Sellano PG 13 1079 6877
Campello sul Clitunno PG 13 2442 9319
Monteleone di Spoleto PG 14 599 9918
Norcia PG 14 4957 14875
Preci PG 15 724 15599
Spoleto PG 16 38218 53817
Trevi PG 19 8469 62286

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SE of Foligno (57155 inhabitants)
33 Km NE of Terni (111501 inhabitants)
58 Km SE of Perugia (166134 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
65 Km W of Teramo (54892 inhabitants)
78 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 0.9 2023-05-15
18:26:47
42.7723 12.9272 11 2023-05-15
18:37:46
Sala Sismica INGV-Roma 117389161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-15 18:26:47 ± 0.06
Latitude 42.7723 ± 0.0027
Longitude 12.9272 ± 0.0037
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117389161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 265
Semi-minor axis of confidence ellipse (meter) 220
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.08364
Epicentral distance of station farthest from the epicenter (degree) 0.33725
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 117389161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-15 18:37:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.HNN. 2023-05-15T18:27:00.39 0.6 undecidable manual S 141 37.4292 91 0.4 44
IV.FDMO.HHZ. 2023-05-15T18:26:58.63 0.6 undecidable manual S 24 32.0457 91 0.09 48
7F.SIB2.EHE. 2023-05-15T18:26:58.77 0.6 undecidable manual S 67 33.3444 91 -0.12 48
IV.MOMA.HHZ. 2023-05-15T18:26:57.61 0.6 undecidable manual S 277 29.2485 91 -0.19 47
7F.SIB3.EHE. 2023-05-15T18:26:57.82 0.6 undecidable manual S 68 30.1476 91 -0.21 47
IV.CESI.HHZ. 2023-05-15T18:26:56.94 0.6 undecidable manual S 356 25.8519 91 0.04 49
IV.LNSS.HHZ. 2023-05-15T18:26:55.35 0.1 undecidable manual S 154 20.9679 92 -0.23 97
7F.SIB2.EHE. 2023-05-15T18:26:54.11 0.1 undecidable manual P 67 33.3444 91 0.02 97
IV.NRCA.HHZ. 2023-05-15T18:26:54.32 0.6 undecidable manual S 66 16.6722 94 -0.12 49
IV.RM33.HNN. 2023-05-15T18:26:54.72 0.1 undecidable manual P 141 37.4292 91 0 97
7F.SIB3.EHE. 2023-05-15T18:26:53.72 0.1 undecidable manual P 68 30.1476 91 0.12 96
IV.CESI.HHZ. 2023-05-15T18:26:53.06 1.0 undecidable manual P 356 25.8519 91 0.13 24
IV.MOMA.HHZ. 2023-05-15T18:26:53.47 0.1 undecidable manual P 277 29.2485 91 0.01 98
IV.FDMO.HHZ. 2023-05-15T18:26:53.93 1.0 negative manual P 24 32.0457 91 0.04 24
IV.LNSS.HHZ. 2023-05-15T18:26:52.12 0.1 undecidable manual P 154 20.9679 92 -0.06 100
IV.GAVE.EHZ. 2023-05-15T18:26:52.47 0.6 undecidable manual S 197 9.2796 125 -0.11 50
IV.NRCA.HHZ. 2023-05-15T18:26:51.54 0.3 negative manual P 66 16.6722 94 0.02 75
IV.GAVE.EHZ. 2023-05-15T18:26:50.55 0.1 undecidable manual P 197 9.2796 125 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.3 0.0002595 0.24 AML other m 2023-05-15T18:26:52.65
IV.GAVE.EHE. ML:1.5 0.000377 0.34 AML other m 2023-05-15T18:26:52.67
IV.NRCA.HHN. ML:0.8 0.000052199999999999995 0.2 AML other m 2023-05-15T18:26:54.42
IV.NRCA.HHE. ML:1.0 0.00008695 0.14 AML other m 2023-05-15T18:26:55.70
IV.BSSO.HHN. ML:2.3 0.000061808245 0.9472 AML other m 2023-05-15T18:27:37.42
IV.BSSO.HHE. ML:2.3 0.00006594999999999999 0.64 AML other m 2023-05-15T18:28:00.00
IV.GAVE.HNE. ML:1.4 0.00032412715 0.128 AML other m 2023-05-15T18:26:52.67
IV.GAVE.HNN. ML:0.8 0.00006930149000000001 0.2048 AML other m 2023-05-15T18:26:52.76
IV.LNSS.HHE. ML:0.7 0.000036478835 0.1024 AML other m 2023-05-15T18:26:56.00
IV.LNSS.HHN. ML:0.6 0.0000266357114 0.1408 AML other m 2023-05-15T18:26:56.82
IV.CESI.HHE. ML:0.6 0.00001879699 0.1536 AML other m 2023-05-15T18:26:57.21
IV.CESI.HHN. ML:0.7 0.00003123481 0.1408 AML other m 2023-05-15T18:26:57.08
IV.FDMO.HHE. ML:0.5 0.00001550586 0.192 AML other m 2023-05-15T18:26:59.07
IV.FDMO.HHN. ML:0.4 0.000012054264 0.2816 AML other m 2023-05-15T18:26:59.35
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