Earthquake with magnitude of ML 1.1 on date 30-09-2023 and time 10:24:39 (UTC) in region 5 km E Foligno (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km E Foligno (PG), on

  • 30-09-2023 10:24:39 (UTC)
  • 30-09-2023 12:24:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9570, 12.7650 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
Foligno PG 5 57155 57155
Spello PG 9 8645 65800
Trevi PG 9 8469 74269
Montefalco PG 11 5679 79948
Valtopina PG 12 1398 81346
Bevagna PG 13 5081 86427
Campello sul Clitunno PG 15 2442 88869
Sellano PG 15 1079 89948
Cannara PG 15 4305 94253
Castel Ritaldi PG 17 3278 97531
Nocera Umbra PG 17 5839 103370
Assisi PG 18 28299 131669
Gualdo Cattaneo PG 18 6155 137824
Cerreto di Spoleto PG 20 1075 138899
Monte Cavallo MC 20 145 139044

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km E of Foligno (57155 inhabitants)
35 Km E of Perugia (166134 inhabitants)
45 Km N of Terni (111501 inhabitants)
81 Km NE of Viterbo (67173 inhabitants)
84 Km W of Teramo (54892 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
91 Km SE of Arezzo (99543 inhabitants)
96 Km SW of Ancona (100861 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 2023-09-30
10:24:39
42.9567 12.7647 11 2023-09-30
10:28:49
Sala Sismica INGV-Roma 121612381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-30 10:24:39 ± 0.05
Latitude 42.9567 ± 0.0036
Longitude 12.7647 ± 0.0037
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 121612381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 362
Semi-minor axis of confidence ellipse (meter) 263
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 349
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) 107
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 16
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34894
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 121612381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-30 10:28:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.SULP.HGZ. 2023-09-30T10:25:05.76 3.0 positive manual P 2.17 0
IV.SMA1.EHZ. 2023-09-30T10:24:56.38 3.0 undecidable manual S -3.38 0
IV.CSP1.EHZ. 2023-09-30T10:24:53.05 0.6 undecidable manual S 67 38.7279 50 0.35 45
IV.ARVD.HHZ. 2023-09-30T10:24:53.40 3.0 undecidable manual P 1.7 0
IV.NRCA.HHZ. 2023-09-30T10:24:50.94 0.6 undecidable manual S 116 31.5462 50 0.16 47
IV.FDMO.HHZ. 2023-09-30T10:24:49.67 0.6 undecidable manual S 71 27.6501 50 -0.07 49
IV.ATCC.EHZ. 2023-09-30T10:24:49.85 0.6 undecidable manual S 338 27.2505 50 0.21 47
IV.MOMA.HHZ. 2023-09-30T10:24:48.57 0.6 undecidable manual S 223 23.1546 50 0.02 49
IV.MML1.EHZ. 2023-09-30T10:24:48.66 0.6 undecidable manual S 44 24.1536 50 -0.16 48
IV.CSP1.EHZ. 2023-09-30T10:24:47.25 1.0 negative manual P 67 38.7279 50 -0.04 24
IV.NRCA.HHZ. 2023-09-30T10:24:46.00 0.3 positive manual P 116 31.5462 50 -0.18 71
IV.ASSB.HHZ. 2023-09-30T10:24:45.64 0.6 undecidable manual S 318 12.876 131 -0.12 49
IV.CESI.HHZ. 2023-09-30T10:24:45.75 0.6 undecidable manual S 65 12.5763 131 0.05 50
IV.FDMO.HHZ. 2023-09-30T10:24:45.44 0.6 positive manual P 71 27.6501 50 -0.14 48
IV.ATCC.EHZ. 2023-09-30T10:24:45.50 0.6 negative manual P 338 27.2505 50 -0.02 49
IV.MML1.EHZ. 2023-09-30T10:24:44.89 0.1 undecidable manual P 44 24.1536 50 -0.16 96
IV.MOMA.HHZ. 2023-09-30T10:24:44.93 0.6 undecidable manual P 223 23.1546 50 0.04 49
IV.ASSB.HHZ. 2023-09-30T10:24:43.34 0.1 negative manual P 318 12.876 131 0.06 100
IV.CESI.HHZ. 2023-09-30T10:24:43.34 0.3 undecidable manual P 65 12.5763 131 0.1 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:1.3 0.000184 0.6 AML other m 2023-09-30T10:24:46.30
IV.ASSB.HHN. ML:1.3 0.000212 0.26 AML other m 2023-09-30T10:24:46.24
IV.MML1.EHE. ML:0.8 0.00003465 1.36 AML other m 2023-09-30T10:24:48.84
IV.MML1.EHN. ML:0.8 0.00003665 1.3 AML other m 2023-09-30T10:24:49.82
IV.ATCC.EHN. ML:1.1 0.000057799999999999995 0.38 AML other m 2023-09-30T10:24:50.29
IV.FDMO.HHE. ML:1.0 0.00005405 0.2 AML other m 2023-09-30T10:24:50.47
IV.ATCC.EHE. ML:0.9 0.0000375 0.42 AML other m 2023-09-30T10:24:51.06
IV.FDMO.HHN. ML:0.8 0.00003395 0.54 AML other m 2023-09-30T10:24:51.55
IV.NRCA.HHE. ML:1.2 0.00007565 1.4 AML other m 2023-09-30T10:24:51.84
IV.NRCA.HHN. ML:1.1 0.000056149999999999996 0.1 AML other m 2023-09-30T10:24:52.07
IV.CSP1.EHE. ML:1.5 0.00010253500000000001 0.36 AML other m 2023-09-30T10:24:53.33
IV.CSP1.EHN. ML:1.4 0.0000965 0.14 AML other m 2023-09-30T10:24:53.61
IV.ARVD.HHE. ML:0.9 0.000017 0.06 AML other m 2023-09-30T10:24:54.09
IV.GUMA.HHE. ML:1.3 0.00006104999999999999 0.3 AML other m 2023-09-30T10:24:56.31
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