Earthquake with magnitude of ML 1.6 on date 23-11-2023 and time 07:58:58 (UTC) in region 4 km SW Giano dell'Umbria (PG)

A magnitude ML 1.6 earthquake occured in region: 4 km SW Giano dell'Umbria (PG), on

  • 23-11-2023 07:58:58 (UTC)
  • 23-11-2023 08:58:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8050, 12.5600 at 8 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
Giano dell'Umbria PG 4 3846 3846
Massa Martana PG 4 3770 7616
Castel Ritaldi PG 10 3278 10894
Gualdo Cattaneo PG 12 6155 17049
Montefalco PG 13 5679 22728
Todi PG 13 16851 39579
Acquasparta TR 13 4778 44357
Collazzone PG 14 3473 47830
Bevagna PG 15 5081 52911
Spoleto PG 17 38218 91129
Fratta Todina PG 17 1839 92968
Monte Castello di Vibio PG 17 1567 94535
Trevi PG 17 8469 103004
Campello sul Clitunno PG 18 2442 105446
Montecastrilli TR 18 5022 110468
Avigliano Umbro TR 20 2558 113026

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SW of Foligno (57155 inhabitants)
28 Km N of Terni (111501 inhabitants)
36 Km SE of Perugia (166134 inhabitants)
57 Km NE of Viterbo (67173 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
90 Km N of Guidonia Montecelio (88673 inhabitants)
92 Km SE of Arezzo (99543 inhabitants)
95 Km W of Teramo (54892 inhabitants)
96 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 1.6 2023-11-23
07:58:58
42.805 12.5595 8 2023-11-23
08:15:00
Sala Sismica INGV-Roma 123355751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-23 07:58:58 ± 0.05
Latitude 42.8050 ± 0.0018
Longitude 12.5595 ± 0.0049
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123355751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 359
Semi-minor axis of confidence ellipse (meter) 210
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 258
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) 102
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.67989
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 123355751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-23 08:15:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2023-11-23T08:00:43.23 3.0 undecidable manual Sg 14.98 0
ST.CARE.HNZ. 2023-11-23T08:00:28.15 3.0 undecidable manual Sn -4.69 0
IV.MRB1.HNZ. 2023-11-23T08:00:21.88 3.0 undecidable manual Sg 12.84 0
IV.CAFE.HNZ. 2023-11-23T08:00:19.36 3.0 undecidable manual Sn 5.09 0
IV.SPS2.HHZ. 2023-11-23T08:00:13.79 3.0 positive manual Pg 9.27 0
IV.MFNL.HHZ. 2023-11-23T08:00:09.87 3.0 negative manual Pn -0.14 0
GU.CANO.HHZ. 2023-11-23T07:59:43.49 3.0 undecidable manual Pn 0.29 0
IV.POFI.HNZ. 2023-11-23T07:59:42.07 3.0 undecidable manual Sn -0.45 0
IV.GUAR.HHZ. 2023-11-23T07:59:33.62 3.0 undecidable manual S -2.97 0
IV.PAOL.HHZ. 2023-11-23T07:59:31.29 3.0 positive manual Pn -2.95 0
IV.SFI.EHZ. 2023-11-23T07:59:27.49 3.0 undecidable manual S -0.64 0
IV.VVLD.HHZ. 2023-11-23T07:59:25.42 3.0 undecidable manual Pg 6.24 0
IV.RIBO.EHZ.01 2023-11-23T07:59:23.76 3.0 undecidable manual S -1.54 0
IV.MMO1.EHZ. 2023-11-23T07:59:18.43 0.3 undecidable manual S 80 63.2922 50 0.29 64
IV.NRCA.HHZ. 2023-11-23T07:59:18.54 3.0 undecidable manual S 1.71 0
IV.CSP1.EHZ. 2023-11-23T07:59:18.05 0.3 undecidable manual S 59 61.2942 50 0.44 62
IV.GUAR.HHZ. 2023-11-23T07:59:17.50 3.0 undecidable manual P -0.51 0
IV.MML1.EHZ. 2023-11-23T07:59:14.03 0.6 undecidable manual S 44 47.8188 50 0.01 47
IV.FDMO.HHZ. 2023-11-23T07:59:14.72 0.3 undecidable manual S 59 50.0166 50 0.14 68
IV.LNSS.HHZ. 2023-11-23T07:59:13.18 0.3 undecidable manual S 120 45.1215 50 -0.12 69
IV.CAFI.HHN. 2023-11-23T07:59:11.65 0.6 undecidable manual P 321 75.4689 50 0.09 44
IV.CESI.HHZ. 2023-11-23T07:59:10.65 0.3 undecidable manual S 52 35.742 50 -0.14 70
IV.ARRO.EHZ. 2023-11-23T07:59:09.11 0.3 undecidable manual S 146 30.1476 105 0.12 71
IV.CSP1.EHZ. 2023-11-23T07:59:09.31 0.1 undecidable manual P 59 61.2942 50 -0.07 90
IV.ATMI.HHZ. 2023-11-23T07:59:09.88 0.6 undecidable manual P 338 63.2922 50 0.19 44
IV.MMO1.EHZ. 2023-11-23T07:59:09.56 0.1 undecidable manual P 80 63.2922 50 -0.12 89
IV.GUMA.HHZ. 2023-11-23T07:59:09.63 3.0 undecidable manual P -0.29 0
IV.ASSB.HHZ. 2023-11-23T07:59:08.11 0.1 undecidable manual S 17 27.5502 107 -0.01 97
IV.SACS.HNN. 2023-11-23T07:59:08.31 0.3 undecidable manual P 276 53.1024 50 0.19 67
IV.SNTG.HHZ. 2023-11-23T07:59:08.95 0.1 undecidable manual P 32 58.6968 50 -0.03 91
IV.ATVA.EHE. 2023-11-23T07:59:08.59 0.3 undecidable manual P 337 56.9985 50 -0.14 67
IV.MML1.EHZ. 2023-11-23T07:59:07.13 0.1 undecidable manual P 44 47.8188 50 -0.18 90
IV.MURB.HHZ. 2023-11-23T07:59:07.79 0.1 undecidable manual P 357 50.9157 50 0.01 93
IV.FDMO.HHZ. 2023-11-23T07:59:07.49 0.1 undecidable manual P 59 50.0166 50 -0.15 90
IV.LNSS.HHZ. 2023-11-23T07:59:06.90 0.1 undecidable manual P 120 45.1215 50 0.01 94
IV.CESX.HHZ. 2023-11-23T07:59:06.08 0.3 undecidable manual S 174 21.9669 110 -0.18 71
IV.CESI.HHZ. 2023-11-23T07:59:05.23 0.1 undecidable manual P 52 35.742 50 -0.21 91
IV.ARRO.EHZ. 2023-11-23T07:59:04.43 0.1 undecidable manual P 146 30.1476 105 0.03 96
IV.FOSV.EHZ. 2023-11-23T07:59:04.26 3.0 undecidable manual P -0.57 0
IV.ASSB.HHZ. 2023-11-23T07:59:03.85 0.1 undecidable manual P 17 27.5502 107 -0.05 96
IV.CESX.HHZ. 2023-11-23T07:59:02.85 0.1 undecidable manual P 174 21.9669 110 0.02 97
IV.MOMA.HHZ. 2023-11-23T07:59:00.06 0.1 undecidable manual P 98 0.8991 174 0.27 96
IV.MOMA.HHZ. 2023-11-23T07:59:00.92 0.1 undecidable manual S 98 0.8991 174 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:1.8 0.000481 0.76 AML other m 2023-11-23T07:59:07.58
IV.CESX.HHE. ML:1.8 0.000481 1.34 AML other m 2023-11-23T07:59:08.67
IV.ASSB.HHE. ML:1.7 0.00029000000000000006 0.22 AML other m 2023-11-23T07:59:08.41
IV.ASSB.HHN. ML:1.7 0.0002665 0.12 AML other m 2023-11-23T07:59:08.72
IV.ARRO.EHE. ML:1.6 0.00017299999999999998 0.4 AML other m 2023-11-23T07:59:09.94
IV.ARRO.EHN. ML:1.6 0.00017350000000000002 1.82 AML other m 2023-11-23T07:59:10.93
IV.CESI.HHE. ML:1.5 0.00011949999999999999 0.58 AML other m 2023-11-23T07:59:11.06
IV.CESI.HHN. ML:1.6 0.00016700000000000002 1.32 AML other m 2023-11-23T07:59:12.85
IV.FDMO.HHE. ML:1.5 0.00009085 1.5 AML other m 2023-11-23T07:59:15.84
IV.MML1.EHN. ML:1.5 0.0000927 1.54 AML other m 2023-11-23T07:59:16.20
IV.FDMO.HHN. ML:1.6 0.00009865 1.42 AML other m 2023-11-23T07:59:17.73
IV.MML1.EHE. ML:1.6 0.00011624999999999999 0.42 AML other m 2023-11-23T07:59:20.78
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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