Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 04-06-2023 and time 08:48:04 (UTC) in region 7 km E Città di Castello (PG)

A magnitude ML 1.1 earthquake occured in region: 7 km E Città di Castello (PG), on

  • 04-06-2023 08:48:04 (UTC)
  • 04-06-2023 10:48:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4760, 12.3240 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.

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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
Città di Castello PG 7 39913 39913
Pietralunga PG 10 2111 42024
Apecchio PU 12 1882 43906
Montone PG 12 1680 45586
Monte Santa Maria Tiberina PG 14 1183 46769
San Giustino PG 14 11297 58066
Citerna PG 17 3531 61597
Monterchi AR 17 1757 63354
Sansepolcro AR 18 15884 79238
Umbertide PG 19 16681 95919
Mercatello sul Metauro PU 19 1378 97297
Piobbico PU 20 2029 99326

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Arezzo (99543 inhabitants)
41 Km N of Perugia (166134 inhabitants)
65 Km NW of Foligno (57155 inhabitants)
68 Km SW of Pesaro (94582 inhabitants)
68 Km S of Rimini (147750 inhabitants)
69 Km SW of Fano (60888 inhabitants)
74 Km S of Cesena (96758 inhabitants)
82 Km E of Siena (53903 inhabitants)
86 Km S of Forlì (117913 inhabitants)
92 Km E of Firenze (382808 inhabitants)
97 Km SE of Faenza (58541 inhabitants)
97 Km E of Scandicci (50609 inhabitants)
98 Km W 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 2023-06-04
08:48:04		 43.4757 12.3243 10 2023-06-04
08:53:10		 Sala Sismica INGV-Roma 118083331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-04 08:48:04 ± 0.05
Latitude 43.4757 ± 0.0027
Longitude 12.3243 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 118083331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 377
Semi-minor axis of confidence ellipse (meter) 271
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 130
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
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 21
Number of defining phases 19
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) 0.30577
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 118083331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-04 08:53:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SFI.EHZ. 2023-06-04T08:48:21.55 3.0 undecidable manual S -2.62 0
IV.FRON.EHZ. 2023-06-04T08:48:15.68 0.6 undecidable manual S 82 32.6451 50 -0.02 50
IV.CAFI.HHZ. 2023-06-04T08:48:15.68 0.6 undecidable manual S 241 33.1446 50 -0.15 48
IV.MURB.HHZ. 2023-06-04T08:48:14.71 0.6 undecidable manual S 146 28.5492 50 0.09 49
IV.NARO.HHZ. 2023-06-04T08:48:13.58 0.6 undecidable manual S 54 25.4523 111 -0.2 49
IV.ATFO.HHZ. 2023-06-04T08:48:13.06 0.6 undecidable manual S 121 23.2545 113 -0.01 51
IV.CRE.HHZ. 2023-06-04T08:48:11.02 0.1 undecidable manual P 298 33.9438 50 -0.05 99
IV.SSFR.HHZ. 2023-06-04T08:48:11.86 3.0 undecidable manual P 0.22 0
IV.ATMI.HHZ. 2023-06-04T08:48:10.74 0.6 undecidable manual S 196 16.3725 121 -0.18 50
IV.MURB.HHZ. 2023-06-04T08:48:10.29 0.6 positive manual P 146 28.5492 50 0.04 50
IV.FRON.EHZ. 2023-06-04T08:48:10.82 0.1 undecidable manual P 82 32.6451 50 -0.05 99
IV.CAFI.HHZ. 2023-06-04T08:48:10.94 0.1 undecidable manual P 241 33.1446 50 -0.01 100
IV.NARO.HHZ. 2023-06-04T08:48:09.66 0.1 undecidable manual P 54 25.4523 111 -0.1 99
IV.APEC.HHZ. 2023-06-04T08:48:09.93 0.6 undecidable manual S 40 11.9769 130 0.24 49
IV.ATFO.HHZ. 2023-06-04T08:48:09.53 0.6 undecidable manual P 121 23.2545 113 0.17 49
IV.ATVO.HHZ. 2023-06-04T08:48:09.73 0.6 undecidable manual S 147 12.2766 129 -0.04 51
IV.ATMI.HHZ. 2023-06-04T08:48:08.24 0.1 undecidable manual P 196 16.3725 121 0.13 100
IV.ATVO.HHZ. 2023-06-04T08:48:07.68 0.1 undecidable manual P 147 12.2766 129 0.23 99
IV.APEC.HHZ. 2023-06-04T08:48:07.76 0.6 undecidable manual P 40 11.9769 130 0.36 48
IV.ATPI.EHZ. 2023-06-04T08:48:07.99 0.6 undecidable manual S 114 6.8931 145 -0.48 47
IV.ATPI.EHZ. 2023-06-04T08:48:06.58 0.6 undecidable manual P 114 6.8931 145 -0.12 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHE. ML:0.8 0.00009884999999999999 0.84 AML other m 2023-06-04T08:48:08.43
IV.ATPI.EHN. ML:0.9 0.000124 0.34 AML other m 2023-06-04T08:48:08.95
IV.ATVO.HHN. ML:1.2 0.0001835 0.2 AML other m 2023-06-04T08:48:10.30
IV.APEC.HHE. ML:1.4 0.000309 0.2 AML other m 2023-06-04T08:48:10.40
IV.APEC.HHN. ML:1.2 0.00017749999999999998 0.36 AML other m 2023-06-04T08:48:10.61
IV.ATVO.HHE. ML:1.3 0.0002415 0.18 AML other m 2023-06-04T08:48:10.89
IV.ATMI.HHE. ML:1.4 0.00021200000000000003 0.5 AML other m 2023-06-04T08:48:11.10
IV.ATMI.HHN. ML:1.2 0.00014600000000000003 0.8 AML other m 2023-06-04T08:48:11.48
IV.ATFO.HHN. ML:0.9 0.00005065 0.44 AML other m 2023-06-04T08:48:13.27
IV.ATFO.HHE. ML:0.8 0.0000408 0.46 AML other m 2023-06-04T08:48:13.63
IV.NARO.HHE. ML:0.7 0.0000321 0.74 AML other m 2023-06-04T08:48:14.92
IV.NARO.HHN. ML:0.8 0.00003575 0.42 AML other m 2023-06-04T08:48:14.63
IV.FRON.EHE. ML:1.3 0.00008754999999999999 0.14 AML other m 2023-06-04T08:48:15.91
IV.FRON.EHN. ML:1.2 0.0000656 1.92 AML other m 2023-06-04T08:48:16.03
IV.MURB.HHN. ML:1.2 0.0000849 0.22 AML other m 2023-06-04T08:48:16.34
IV.CAFI.HHE. ML:0.8 0.0000307 0.12 AML other m 2023-06-04T08:48:16.23
IV.CAFI.HHN. ML:0.7 0.000021400000000000002 0.42 AML other m 2023-06-04T08:48:17.33
IV.SSFR.HHN. ML:1.2 0.00006445 0.48 AML other m 2023-06-04T08:48:17.05
IV.MURB.HHE. ML:1.2 0.00007580000000000001 0.58 AML other m 2023-06-04T08:48:17.27
IV.SSFR.HHE. ML:1.3 0.0000815 0.7 AML other m 2023-06-04T08:48:17.95
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