Earthquake with magnitude of ML 1.1 on date 25-08-2023 and time 05:45:09 (UTC) in region 2 km S Scheggino (PG)

A magnitude ML 1.1 earthquake occured in region: 2 km S Scheggino (PG), on

  • 25-08-2023 05:45:09 (UTC)
  • 25-08-2023 07:45:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6950, 12.8250 at 12 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 2 461 461
Sant'Anatolia di Narco PG 5 564 1025
Spoleto PG 8 38218 39243
Ferentillo TR 9 1913 41156
Vallo di Nera PG 9 364 41520
Poggiodomo PG 9 117 41637
Monteleone di Spoleto PG 11 599 42236
Montefranco TR 12 1276 43512
Polino TR 12 233 43745
Arrone TR 13 2763 46508
Campello sul Clitunno PG 15 2442 48950
Cascia PG 16 3217 52167
Cerreto di Spoleto PG 16 1075 53242
Leonessa RI 19 2435 55677
Morro Reatino RI 19 373 56050
Labro RI 19 374 56424
Castel Ritaldi PG 19 3278 59702
Rivodutri RI 20 1253 60955

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Terni (111501 inhabitants)
31 Km SE of Foligno (57155 inhabitants)
58 Km SE of Perugia (166134 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Viterbo (67173 inhabitants)
72 Km W of Teramo (54892 inhabitants)
78 Km N of Guidonia Montecelio (88673 inhabitants)
81 Km N of Tivoli (56533 inhabitants)
93 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 1.1 2023-08-25
05:45:09
42.6947 12.8253 13 2023-08-25
07:50:33
Sala Sismica INGV-Roma 120460801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-25 05:45:09 ± 0.12
Latitude 42.6947 ± 0.0063
Longitude 12.8253 ± 0.0073
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120460801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 654
Semi-minor axis of confidence ellipse (meter) 430
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.43167
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 120460801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-25 07:50:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2023-08-25T05:45:25.30 0.6 undecidable manual S 14 47.9187 92 0.26 48
IV.ATCC.EHZ. 2023-08-25T05:45:24.79 0.6 undecidable manual S -0.35 1.61
IV.FDMO.HHZ. 2023-08-25T05:45:23.96 1.0 undecidable manual S 29 43.5231 93 0.11 25
IV.CESI.HHZ. 2023-08-25T05:45:21.44 0.3 undecidable manual S 11 35.0427 94 -0.15 77
IV.NRCA.HHZ. 2023-08-25T05:45:19.57 0.3 undecidable manual S 57 28.1496 95 -0.19 77
IV.MOMA.HNZ. 2023-08-25T05:45:18.20 0.6 undecidable manual S 300 24.0537 97 -0.48 48
IV.MML1.EHZ. 2023-08-25T05:45:18.37 1.0 negative manual P 14 47.9187 92 -0.22 24
IT.GNU.HGZ. 2023-08-25T05:45:18.53 0.3 undecidable manual S 300 24.0537 97 -0.15 77
IV.FDMO.HHZ. 2023-08-25T05:45:18.40 0.3 undecidable manual P 29 43.5231 93 0.5 69
IV.LNSS.HHZ. 2023-08-25T05:45:17.66 0.3 undecidable manual S 120 20.2686 100 -0.02 79
IV.CESI.HHZ. 2023-08-25T05:45:16.33 0.3 undecidable manual P 11 35.0427 94 -0.27 74
IV.ASSB.HHZ. 2023-08-25T05:45:16.63 1.0 negative manual P 1.44 0.2
IV.NRCA.HHZ. 2023-08-25T05:45:15.40 0.3 undecidable manual P 57 28.1496 95 -0.14 77
IV.MOMA.HNZ. 2023-08-25T05:45:15.23 0.1 undecidable manual P 300 24.0537 97 0.31 100
IT.GNU.HGZ. 2023-08-25T05:45:15.54 0.6 undecidable manual P 300 24.0537 97 0.62 46
IV.GAVE.EHZ. 2023-08-25T05:45:14.34 0.3 undecidable manual S 93 5.5944 149 -0.05 82
IV.LNSS.HHZ. 2023-08-25T05:45:14.47 0.6 undecidable manual P 120 20.2686 100 0.13 53
IV.ARRO.EHZ. 2023-08-25T05:45:13.35 1.0 undecidable manual P 0.53 0.8
IV.GAVE.EHZ. 2023-08-25T05:45:12.50 1.0 undecidable manual P 93 5.5944 149 0.06 27
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.3 0.0002465 0.2 AML other m 2023-08-25T05:45:14.58
IV.GAVE.EHE. ML:1.4 0.000299 1.1 AML other m 2023-08-25T05:45:14.60
IV.LNSS.HHE. ML:1.2 0.000122 1.08 AML other m 2023-08-25T05:45:18.03
IV.LNSS.HHN. ML:1.2 0.0001088 0.42 AML other m 2023-08-25T05:45:18.39
IV.NRCA.HHN. ML:0.9 0.0000399 0.42 AML other m 2023-08-25T05:45:20.76
IV.NRCA.HHE. ML:0.9 0.0000394 0.2 AML other m 2023-08-25T05:45:21.37
IV.FDMO.HHE. ML:1.1 0.00003845 0.18 AML other m 2023-08-25T05:45:24.42
IV.FDMO.HHN. ML:0.8 0.00001805 0.52 AML other m 2023-08-25T05:45:24.66
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download