Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 26-08-2023 and time 20:15:26 (UTC) in region 7 km NW Gubbio (PG)

A magnitude ML 2.1 earthquake occured in region: 7 km NW Gubbio (PG), on

  • 26-08-2023 20:15:26 (UTC)
  • 26-08-2023 22:15:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3970, 12.5160 at 6 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Gubbio PG 7 32216 32216
Pietralunga PG 8 2111 34327
Scheggia e Pascelupo PG 12 1393 35720
Cantiano PU 13 2245 37965
Montone PG 16 1680 39645
Costacciaro PG 16 1216 40861
Umbertide PG 18 16681 57542
Apecchio PU 20 1882 59424
Sigillo PG 20 2404 61828
Cagli PU 20 8731 70559

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NE of Perugia (166134 inhabitants)
51 Km NW of Foligno (57155 inhabitants)
52 Km E of Arezzo (99543 inhabitants)
64 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
74 Km S of Rimini (147750 inhabitants)
85 Km W of Ancona (100861 inhabitants)
85 Km S of Cesena (96758 inhabitants)
94 Km N of Terni (111501 inhabitants)
96 Km E of Siena (53903 inhabitants)
100 Km SE of Forlì (117913 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 2.1 2023-08-26
20:15:26		 43.397 12.5163 6 2023-08-26
20:23:05		 Sala Sismica INGV-Roma 120499581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-26 20:15:26 ± 0.07
Latitude 43.3970 ± 0.0027
Longitude 12.5163 ± 0.0037
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120499581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 278
Semi-minor axis of confidence ellipse (meter) 155
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 330
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 24
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) 0.29947
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 17
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 120499581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-26 20:23:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GUMA.HHZ. 2023-08-26T20:15:50.91 3.0 undecidable manual S -0.03 0
IV.CSP1.EHZ. 2023-08-26T20:15:48.01 3.0 undecidable manual S 0.29 0
IV.FDMO.HHZ. 2023-08-26T20:15:46.44 3.0 undecidable manual S 0.01 0
IV.MF5.EHZ. 2023-08-26T20:15:42.60 3.0 negative manual P 0.23 0
IV.GUMA.HHZ. 2023-08-26T20:15:40.37 3.0 negative manual P 0.15 0
IV.NRCA.HHZ. 2023-08-26T20:15:40.53 3.0 positive manual P -0.11 0
IV.CSP1.EHZ. 2023-08-26T20:15:37.94 3.0 undecidable manual P -0.47 0
IV.FDMO.HHZ. 2023-08-26T20:15:37.34 3.0 positive manual P -0.35 0
IV.MGAB.HHZ. 2023-08-26T20:15:37.72 3.0 positive manual P -0.13 0
IV.COR1.EHZ. 2023-08-26T20:15:36.06 3.0 positive manual P 0.44 0
IV.CRTC.HHZ. 2023-08-26T20:15:36.54 3.0 negative manual P 0.25 0
IV.CRE.HHZ. 2023-08-26T20:15:36.25 3.0 negative manual P -0.05 0
IV.MML1.EHZ. 2023-08-26T20:15:35.35 3.0 positive manual P -0.22 0
IV.CAFI.HHZ. 2023-08-26T20:15:34.53 3.0 positive manual P -0.49 0
IV.ASSB.HHZ. 2023-08-26T20:15:34.01 3.0 positive manual P -0.19 0
IV.PE3.EHZ. 2023-08-26T20:15:33.67 0.1 positive manual P 357 33.2445 99 0.08 94
IV.ARVD.HHZ. 2023-08-26T20:15:33.67 3.0 positive manual P -0.09 0
IV.SNTG.HHZ. 2023-08-26T20:15:33.73 3.0 positive manual P -0.12 0
IV.MPAG.EHZ. 2023-08-26T20:15:33.13 0.1 positive manual P 37 32.3454 100 -0.28 90
IV.MURB.HNZ. 2023-08-26T20:15:32.48 0.3 undecidable manual S 177 14.874 110 0.12 72
IV.FRON.EHZ. 2023-08-26T20:15:31.25 0.1 positive manual P 51 21.5673 104 -0.05 96
IV.NARO.HHZ. 2023-08-26T20:15:31.68 0.3 undecidable manual P 12 24.2535 103 -0.15 71
IV.BADI.EHZ. 2023-08-26T20:15:31.84 3.0 positive manual P -0.05 0
IV.FOSV.EHZ. 2023-08-26T20:15:31.25 1.0 positive manual P 120 22.755 104 -0.29 23
IV.TSM3.DHZ.01 2023-08-26T20:15:31.80 0.3 undecidable manual S 263 13.0758 113 0.03 74
IV.ATCC.EHZ. 2023-08-26T20:15:31.81 3.0 positive manual P 0.16 0
IV.TSM4.DHZ.09 2023-08-26T20:15:30.61 0.3 undecidable manual P 240 19.6692 106 -0.33 68
IV.TB02.DHZ.01 2023-08-26T20:15:30.57 0.3 undecidable manual S 251 9.0798 121 0.02 74
IT.UMBT.HGZ. 2023-08-26T20:15:30.68 0.1 positive manual P 234 17.3715 108 0.19 94
IV.TSM1.DHZ.01 2023-08-26T20:15:30.49 0.3 undecidable manual S 131 8.6802 123 0.06 74
IV.TB03.DHZ.01 2023-08-26T20:15:30.52 0.3 undecidable manual S 273 8.5803 123 0.14 73
IV.ATMI.HHZ. 2023-08-26T20:15:30.94 3.0 positive manual P -0.07 0
IV.PIEI.HHZ. 2023-08-26T20:15:30.37 0.1 positive manual P 6 15.4734 110 0.23 94
IV.TSM6.DHZ.01 2023-08-26T20:15:30.34 0.3 undecidable manual P 300 16.9719 108 -0.08 72
IV.ATPI.HNZ. 2023-08-26T20:15:29.45 3.0 positive manual P -0.11 0
IV.TB01.DHZ.01 2023-08-26T20:15:29.86 0.3 undecidable manual S 255 6.6933 130 -0.01 75
IV.TSM5.DHZ.10 2023-08-26T20:15:29.81 0.3 undecidable manual P 37 11.4774 116 0.41 68
IV.MURB.HNZ. 2023-08-26T20:15:29.98 0.6 undecidable manual P 177 14.874 110 -0.05 49
IV.TSM3.DHZ.01 2023-08-26T20:15:29.68 0.3 undecidable manual P 263 13.0758 113 -0.01 74
IV.TSM1.DHZ.01 2023-08-26T20:15:28.93 0.3 undecidable manual P 131 8.6802 123 0.02 74
IV.TB03.DHZ.01 2023-08-26T20:15:28.90 0.3 undecidable manual P 273 8.5803 123 0.01 75
IV.TSM2.DHZ.01 2023-08-26T20:15:28.00 0.1 undecidable manual P 268 2.0979 159 -0.04 100
IV.ATFO.HHZ. 2023-08-26T20:15:28.40 3.0 undecidable manual P -0.36 0
IV.TB01.DHZ.01 2023-08-26T20:15:28.60 0.3 undecidable manual P 255 6.6933 130 0.01 75
IV.TB02.DHZ.01 2023-08-26T20:15:28.96 0.3 undecidable manual P 251 9.0798 121 -0.02 74
IV.TSM2.DHZ.01 2023-08-26T20:15:28.71 0.3 undecidable manual S 268 2.0979 159 -0.2 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHE. ML:2.5 0.0035 0.32 AML other m 2023-08-26T20:15:33.98
IV.PIEI.HHN. ML:2.5 0.0032690085 0.3072 AML other m 2023-08-26T20:15:34.26
IV.PIEI.HNN. ML:2.4 0.0024097235 0.2944 AML other m 2023-08-26T20:15:34.26
IV.PIEI.HNE. ML:2.4 0.00294657 0.2944 AML other m 2023-08-26T20:15:33.97
IV.FRON.EHE. ML:2.0 0.000847 0.1 AML other m 2023-08-26T20:15:35.35
IV.FRON.EHN. ML:2.2 0.00119056955 0.128 AML other m 2023-08-26T20:15:35.54
IV.NARO.HHN. ML:0.0 0.00038694815 0.1792 AML other m 2023-08-26T20:15:36.16
IV.FOSV.HNE. ML:1.8 0.00043107105 0.4736 AML other m 2023-08-26T20:15:41.99
IV.NARO.HHE. ML:0.0 0.0006112797999999999 0.064 AML other m 2023-08-26T20:15:35.96
IV.FOSV.EHN. ML:1.8 0.0004955 0.28 AML other m 2023-08-26T20:15:37.87
IV.FOSV.HNN. ML:1.8 0.000442684 0.2304 AML other m 2023-08-26T20:15:37.86
IV.PE3.EHE. ML:2.2 0.0007803529499999999 0.32 AML other m 2023-08-26T20:15:39.94
IV.SNTG.HHN. ML:2.2 0.0006194999999999999 0.2 AML other m 2023-08-26T20:15:40.06
IV.SNTG.HNN. ML:2.2 0.00061714975 0.192 AML other m 2023-08-26T20:15:40.06
IV.SNTG.HHE. ML:2.1 0.0004838387 0.2048 AML other m 2023-08-26T20:15:40.42
IV.SNTG.HNE. ML:2.1 0.00045941540000000005 0.2048 AML other m 2023-08-26T20:15:40.33
IV.PE3.EHN. ML:2.2 0.00075328335 0.32 AML other m 2023-08-26T20:15:41.51
IV.CAFI.HHN. ML:1.9 0.00023282645 0.3456 AML other m 2023-08-26T20:15:41.08
IV.CAFI.HHE. ML:2.0 0.00029768709999999996 0.2176 AML other m 2023-08-26T20:15:41.96
IV.FOSV.EHE. ML:1.8 0.0004295 1.52 AML other m 2023-08-26T20:15:42.00
IV.MML1.EHN. ML:2.1 0.0003411324 0.3072 AML other m 2023-08-26T20:15:43.07
IV.MML1.HNN. ML:2.1 0.000345557 0.3072 AML other m 2023-08-26T20:15:43.07
IV.MML1.EHE. ML:2.1 0.0003465 1.76 AML other m 2023-08-26T20:15:44.96
IV.MML1.HNE. ML:2.1 0.00035549999999999997 1.74 AML other m 2023-08-26T20:15:44.09
IV.CRE.HHE. ML:2.0 0.0002705 0.4 AML other m 2023-08-26T20:15:44.61
IV.CRE.HHN. ML:2.1 0.000343 0.28 AML other m 2023-08-26T20:15:44.73
IV.FDMO.HHE. ML:2.0 0.0002023556 0.2048 AML other m 2023-08-26T20:15:46.89
IV.FDMO.HHN. ML:2.1 0.00027 0.14 AML other m 2023-08-26T20:15:47.18
IV.MGAB.HHE. ML:2.4 0.0004745 1.72 AML other m 2023-08-26T20:15:48.93
IV.CSP1.EHE. ML:2.4 0.0005062347000000001 0.2176 AML other m 2023-08-26T20:15:48.90
IV.MGAB.HHN. ML:2.6 0.0007379999999999999 0.28 AML other m 2023-08-26T20:15:49.77
IV.MGAB.HNN. ML:2.5 0.00066801645 0.2816 AML other m 2023-08-26T20:15:49.77
IV.MGAB.HNE. ML:2.4 0.00043574484999999997 0.4352 AML other m 2023-08-26T20:15:49.57
IV.CSP1.EHN. ML:2.4 0.0004290892 0.32 AML other m 2023-08-26T20:15:51.54
IV.GUMA.HHE. ML:2.4 0.0003725 0.22 AML other m 2023-08-26T20:15:52.44
IV.GUMA.HHN. ML:1.9 0.000117891005 2.6368 AML other m 2023-08-26T20:15:52.13
IV.NRCA.HHE. ML:1.9 0.00010272083500000002 0.1792 AML other m 2023-08-26T20:15:53.34
IV.NRCA.HHN. ML:1.9 0.00011534088000000001 0.128 AML other m 2023-08-26T20:15:52.66
IV.MF5.EHE. ML:2.1 0.00014424999999999998 0.52 AML other m 2023-08-26T20:15:58.85
IV.MF5.EHN. ML:2.1 0.0001585 0.4 AML other m 2023-08-26T20:16:02.61
IV.CAFI.HNE. ML:2.0 0.00027897 0.2304 AML other m 2023-08-26T20:15:41.96
IV.CAFI.HNN. ML:1.8 0.0002054645 0.3584 AML other m 2023-08-26T20:15:41.08
IV.COR1.EHE. ML:1.9 0.00024515515 0.2816 AML other m 2023-08-26T20:15:46.64
IV.COR1.EHN. ML:2.1 0.00034036895 0.5632 AML other m 2023-08-26T20:15:50.55
IV.COR1.HNE. ML:2.9 0.002206519 1.0624 AML other m 2023-08-26T20:15:39.26
IV.COR1.HNN. ML:2.5 0.0009284272499999999 0.5504 AML other m 2023-08-26T20:15:52.84
IV.GUMA.HNE. ML:2.3 0.0003010253 0.2944 AML other m 2023-08-26T20:15:56.17
IV.GUMA.HNN. ML:1.7 0.00007995929999999999 0.9088 AML other m 2023-08-26T20:15:50.94
IV.NRCA.HNE. ML:2.1 0.00018502204999999998 0.6272 AML other m 2023-08-26T20:16:01.83
IV.NRCA.HNN. ML:2.1 0.00017896125 0.3584 AML other m 2023-08-26T20:15:53.57
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
Waveforms Seismic signals in miniseed + resp format Download