Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.3 on date 05-01-2023 and time 03:25:01 (UTC) in region 3 km N Pietralunga (PG)

A magnitude ML 0.3 earthquake occured in region: 3 km N Pietralunga (PG), on

  • 05-01-2023 03:25:01 (UTC)
  • 05-01-2023 04:25:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4740, 12.4350 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
Pietralunga PG 4 2111 2111
Apecchio PU 10 1882 3993
Piobbico PU 14 2029 6022
Montone PG 15 1680 7702
Cantiano PU 16 2245 9947
Città di Castello PG 16 39913 49860
Gubbio PG 18 32216 82076
Cagli PU 19 8731 90807

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Perugia (166134 inhabitants)
45 Km E of Arezzo (99543 inhabitants)
62 Km NW of Foligno (57155 inhabitants)
62 Km SW of Pesaro (94582 inhabitants)
63 Km SW of Fano (60888 inhabitants)
66 Km S of Rimini (147750 inhabitants)
75 Km S of Cesena (96758 inhabitants)
89 Km W of Ancona (100861 inhabitants)
89 Km SE of Forlì (117913 inhabitants)
91 Km E of Siena (53903 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 0.3 2023-01-05
03:25:01		 43.4745 12.4352 6 2023-01-05
03:42:10		 Sala Sismica INGV-Roma 113317471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-05 03:25:01 ± 0.08
Latitude 43.4745 ± 0.0018
Longitude 12.4352 ± 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 113317471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 250
Semi-minor axis of confidence ellipse (meter) 17
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 97
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
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 16
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) 0.01709
Epicentral distance of station farthest from the epicenter (degree) 0.18886
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 113317471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-05 03:42:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BADI.EHZ. 2023-01-05T03:25:07.18 0.3 undecidable manual S 284 15.873 111 0.18 96
IV.ATVO.HHZ. 2023-01-05T03:25:05.52 0.3 undecidable manual S 193 10.4784 121 0.19 96
IV.ATSC.EHZ. 2023-01-05T03:25:05.25 0.3 undecidable manual P 105 20.9679 106 -0.24 93
IV.APEC.HHZ. 2023-01-05T03:25:05.04 0.3 undecidable manual S 353 9.3795 123 0.03 99
IV.TSM2.DHZ.01 2023-01-05T03:25:05.21 0.3 undecidable manual S 153 9.7791 122 0.1 98
IV.PIEI.HHZ. 2023-01-05T03:25:05.54 0.3 undecidable manual S 50 10.4784 121 0.2 96
IV.BADI.EHZ. 2023-01-05T03:25:04.36 0.3 undecidable manual P 284 15.873 111 -0.15 96
IV.APEC.HHZ. 2023-01-05T03:25:03.31 0.3 undecidable manual P 353 9.3795 123 -0.05 99
IV.TSM2.DHZ.01 2023-01-05T03:25:03.38 0.3 undecidable manual P 153 9.7791 122 -0.03 99
IV.PIEI.HHZ. 2023-01-05T03:25:03.58 0.3 undecidable manual P 50 10.4784 121 0.03 99
IV.ATBU.HNZ. 2023-01-05T03:25:03.41 0.3 undecidable manual P 89 9.0798 124 0.1 98
IV.ATPI.EHZ. 2023-01-05T03:25:03.51 0.3 undecidable manual S 225 3.6963 149 -0.1 99
IV.ATVO.HHZ. 2023-01-05T03:25:03.56 0.3 undecidable manual P 193 10.4784 121 0.01 100
IV.ATPC.HHZ. 2023-01-05T03:25:03.24 0.3 undecidable manual S 69 1.8981 163 -0.11 99
IV.ATPI.EHZ. 2023-01-05T03:25:02.46 0.3 undecidable manual P 225 3.6963 149 -0.09 99
IV.ATPC.HHZ. 2023-01-05T03:25:02.33 0.3 undecidable manual P 69 1.8981 163 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHN. ML:1.0 0.0000677 1.44 AML other m 2023-01-05T03:25:10.26
IV.ATPI.EHE. ML:0.0 0.000044136544999999996 0.2592 AML other m 2023-01-05T03:25:03.75
IV.ATPI.EHN. ML:0.0 0.000026790309999999997 0.12 AML other m 2023-01-05T03:25:03.79
IV.APEC.HHE. ML:0.4 0.000038466794999999995 0.1392 AML other m 2023-01-05T03:25:05.34
IV.APEC.HHN. ML:0.3 0.00003331398 0.24 AML other m 2023-01-05T03:25:05.22
IV.ATVO.HHE. ML:0.4 0.000033831294999999995 0.1808 AML other m 2023-01-05T03:25:05.74
IV.ATVO.HHN. ML:0.0 0.0000144241 0.16 AML other m 2023-01-05T03:25:05.72
IV.PIEI.HHE. ML:0.2 0.000026076965000000002 0.12 AML other m 2023-01-05T03:25:05.97
IV.PIEI.HHN. ML:0.0 0.00001532882 0.1008 AML other m 2023-01-05T03:25:05.81
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