Earthquake with magnitude of ML 0.9 on date 27-07-2023 and time 17:50:26 (UTC) in region 4 km E Scheggino (PG)

A magnitude ML 0.9 earthquake occured in region: 4 km E Scheggino (PG), on

  • 27-07-2023 17:50:26 (UTC)
  • 27-07-2023 19:50:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6990, 12.8750 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Scheggino PG 4 461 461
Sant'Anatolia di Narco PG 5 564 1025
Poggiodomo PG 5 117 1142
Vallo di Nera PG 8 364 1506
Monteleone di Spoleto PG 8 599 2105
Ferentillo TR 11 1913 4018
Cascia PG 12 3217 7235
Spoleto PG 12 38218 45453
Polino TR 13 233 45686
Cerreto di Spoleto PG 14 1075 46761
Montefranco TR 14 1276 48037
Arrone TR 15 2763 50800
Campello sul Clitunno PG 16 2442 53242
Leonessa RI 17 2435 55677
Morro Reatino RI 19 373 56050

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Terni (111501 inhabitants)
32 Km SE of Foligno (57155 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
60 Km SE of Perugia (166134 inhabitants)
68 Km W of Teramo (54892 inhabitants)
70 Km E of Viterbo (67173 inhabitants)
79 Km N of Guidonia Montecelio (88673 inhabitants)
82 Km N of Tivoli (56533 inhabitants)
95 Km NE of Roma (2864731 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 2023-07-27
17:50:26
42.6988 12.875 10 2023-07-27
18:01:22
Sala Sismica INGV-Roma 119632291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-27 17:50:26 ± 0.1
Latitude 42.6988 ± 0.0081
Longitude 12.8750 ± 0.0098
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119632291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 945
Semi-minor axis of confidence ellipse (meter) 649
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 146
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.02433
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 119632291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-27 18:01:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2023-07-27T17:51:02.32 3.0 undecidable manual S 0.02 0
IV.FDMO.HHZ. 2023-07-27T17:50:39.91 0.6 undecidable manual S 25 41.2254 50 -0.01 48
IV.INTR.HHZ. 2023-07-27T17:50:35.09 3.0 undecidable manual P 113.6973 -9.99 0
IV.FDMO.HHZ. 2023-07-27T17:50:34.19 0.1 undecidable manual P 25 41.2254 50 0.08 95
IV.NRCA.HHZ. 2023-07-27T17:50:34.74 0.6 undecidable manual S 52 24.5532 112 -0.58 43
IV.ASSB.HHE. 2023-07-27T17:50:34.02 0.1 undecidable manual P 335 42.0246 50 -0.2 92
7F.SIB1.EHE. 2023-07-27T17:50:33.99 0.1 undecidable manual P 56 38.8278 50 0.26 92
IV.ARRO.EHZ. 2023-07-27T17:50:32.32 0.6 undecidable manual S 214 15.9729 121 -0.34 47
IV.LNSS.HHE. 2023-07-27T17:50:32.65 0.6 undecidable manual S 128 17.1717 119 -0.36 46
IV.NRCA.HHZ. 2023-07-27T17:50:31.24 1.0 negative manual P 52 24.5532 112 -0.21 24
IV.LNSS.HHE. 2023-07-27T17:50:30.27 0.1 undecidable manual P 128 17.1717 119 0.15 97
IV.GAVE.EHZ. 2023-07-27T17:50:29.73 0.1 undecidable manual S 115 1.6983 170 0.14 100
IV.ARRO.EHZ. 2023-07-27T17:50:29.88 0.1 undecidable manual P 214 15.9729 121 -0.03 100
IV.GAVE.EHZ. 2023-07-27T17:50:28.38 0.1 negative manual P 115 1.6983 170 0.24 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:0.9 0.00016649999999999998 1.02 AML other m 2023-07-27T17:50:29.22
IV.GAVE.EHN. ML:1.0 0.000186 0.16 AML other m 2023-07-27T17:50:29.90
IV.ARRO.EHE. ML:1.0 0.00008665 0.2 AML other m 2023-07-27T17:50:32.56
IV.ARRO.EHN. ML:0.9 0.00007209999999999999 0.24 AML other m 2023-07-27T17:50:32.69
IV.GAVE.HNE. ML:0.0 0.00014594227 0.2304 AML other m 2023-07-27T17:50:29.72
IV.GAVE.HNN. ML:0.0 0.00017160694999999998 0.8704 AML other m 2023-07-27T17:50:29.09
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