Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 03-04-2023 and time 00:07:02 (Italy) in region 5 km SE Urbania (PU)

A magnitude ML 0.4 earthquake occured in region: 5 km SE Urbania (PU), on

  • 02-04-2023 22:07:02 (UTC)
  • 03-04-2023 00:07:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6400, 12.5660 at 13 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Urbania PU 5 7099 7099
Piobbico PU 7 2029 9128
Fermignano PU 8 8596 17724
Peglio PU 9 696 18420
Acqualagna PU 9 4393 22813
Urbino PU 11 15019 37832
Cagli PU 12 8731 46563
Sant'Angelo in Vado PU 13 4133 50696
Lunano PU 14 1527 52223
Apecchio PU 15 1882 54105
Piandimeleto PU 15 2167 56272
Sassocorvaro PU 17 3504 59776
Belforte all'Isauro PU 18 769 60545
Mercatello sul Metauro PU 18 1378 61923
Cantiano PU 19 2245 64168
Frontone PU 20 1300 65468
Montecalvo in Foglia PU 20 2718 68186

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Pesaro (94582 inhabitants)
43 Km SW of Fano (60888 inhabitants)
47 Km S of Rimini (147750 inhabitants)
58 Km E of Arezzo (99543 inhabitants)
61 Km N of Perugia (166134 inhabitants)
61 Km SE of Cesena (96758 inhabitants)
77 Km W of Ancona (100861 inhabitants)
77 Km N of Foligno (57155 inhabitants)
77 Km SE of Forlì (117913 inhabitants)
90 Km SE of Faenza (58541 inhabitants)
91 Km SE of Ravenna (159116 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
Bulletin
Rev1000 		ML 0.4 2023-04-02
22:07:02		 43.6398 12.5663 13 2024-03-01
17:18:03		 Bollettino Sismico Italiano INGV 116449801
Reviewed
Rev100 		ML 0.5 2023-04-02
22:07:02		 43.6368 12.5625 14 2023-04-02
22:20:05		 Sala Sismica INGV-Roma 115984951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-02 22:07:02 ± 0.11
Latitude 43.6398 ± 0.0054
Longitude 12.5663 ± 0.0050
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116449801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 485
Semi-minor axis of confidence ellipse (meter) 390
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 191
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.30667
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 115984951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-02 22:20:05

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 116449801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-17 08:37:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PARC.HHZ. 2023-04-02T22:07:12.22 0.1 undecidable manual S 272 26.3514 99 0 97
IV.SSFR.HHZ. 2023-04-02T22:07:12.94 0.3 undecidable manual S 142 28.4493 98 0.14 71
IV.ATPI.EHZ. 2023-04-02T22:07:11.92 0.1 undecidable manual S 212 24.753 100 0.1 96
IV.ATPC.HNZ. 2023-04-02T22:07:11.10 0.3 undecidable manual S 207 19.7691 106 0.61 64
IV.FRON.EHZ. 2023-04-02T22:07:10.55 0.1 undecidable manual S 137 18.6702 107 0.33 92
IV.ATBU.EHZ. 2023-04-02T22:07:10.19 0.6 undecidable manual S 185 18.2706 108 0.06 49
IV.MPAG.EHZ. 2023-04-02T22:07:09.63 0.1 undecidable manual S 94 15.5733 114 0.18 96
IV.APEC.HNZ. 2023-04-02T22:07:09.17 0.1 undecidable manual S 233 14.874 116 -0.1 98
IV.ARVD.HHZ. 2023-04-02T22:07:09.46 0.3 undecidable manual P 117 34.0437 96 0.09 71
IV.ATVO.HHZ. 2023-04-02T22:07:08.97 0.3 undecidable manual P 204 31.3464 97 0.01 73
IV.PE3.EHZ. 2023-04-02T22:07:08.21 0.1 undecidable manual S 318 8.3805 139 0.31 95
IV.TB03.DHZ.01 2023-04-02T22:07:08.74 0.1 undecidable manual P 205 29.2485 97 0.09 96
IV.PARC.HHZ. 2023-04-02T22:07:08.05 0.1 undecidable manual P 272 26.3514 99 -0.15 94
IV.SSFR.HHZ. 2023-04-02T22:07:08.10 0.1 undecidable manual P 142 28.4493 98 -0.42 89
IV.ATPI.EHZ. 2023-04-02T22:07:07.72 0.1 undecidable manual P 212 24.753 100 -0.24 93
IV.ATPC.HNZ. 2023-04-02T22:07:07.24 0.3 undecidable manual P 207 19.7691 106 0.04 74
IV.ATSC.EHZ. 2023-04-02T22:07:07.95 0.3 undecidable manual P 158 25.8519 99 -0.17 71
IV.FRON.EHZ. 2023-04-02T22:07:07.12 0.1 undecidable manual P 137 18.6702 107 0.08 98
IV.APEC.HNZ. 2023-04-02T22:07:06.51 0.3 undecidable manual P 233 14.874 116 0.01 75
IV.MPAG.EHZ. 2023-04-02T22:07:06.64 0.3 undecidable manual P 94 15.5733 114 0.05 74
IV.ATBU.EHZ. 2023-04-02T22:07:06.36 0.6 undecidable manual P 185 18.2706 108 -0.63 42
IV.NARO.HHZ. 2023-04-02T22:07:06.77 0.1 undecidable manual S 160 3.3966 162 -0.47 92
IV.NARO.HHZ. 2023-04-02T22:07:05.24 0.1 undecidable manual P 160 3.3966 162 -0.08 100
IV.PE3.EHZ. 2023-04-02T22:07:05.78 0.1 undecidable manual P 318 8.3805 139 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NARO.HHE. ML:1.0 0.00011784999999999999 0.08 AML other m 2023-04-02T22:07:07.05
IV.NARO.HHN. ML:1.3 0.000275 0.08 AML other m 2023-04-02T22:07:07.05
IV.PE3.EHN. ML:0.4 0.0000298968945 0.1408 AML other m 2023-04-02T22:07:09.14
IV.MPAG.HNE. ML:0.7 0.000043497175 1.1808 AML other m 2023-04-02T22:07:09.86
IV.MPAG.EHE. ML:0.3 0.0000173270835 0.1152 AML other m 2023-04-02T22:07:09.86
IV.MPAG.EHN. ML:0.1 0.000010305682499999999 0.1664 AML other m 2023-04-02T22:07:10.00
IV.MPAG.HNN. ML:0.9 0.0000666362 0.6528 AML other m 2023-04-02T22:07:10.01
IV.FRON.EHE. ML:0.3 0.000017166295 0.0768 AML other m 2023-04-02T22:07:10.83
IV.PE3.EHE. ML:0.2 0.000020586869999999996 1.6544 AML other m 2023-04-02T22:07:10.85
IV.FRON.EHN. ML:0.4 0.000020364875 0.064 AML other m 2023-04-02T22:07:10.83
IV.PARC.HHN. ML:0.3 0.0000100659785 0.2176 AML other m 2023-04-02T22:07:12.26
IV.PARC.HHE. ML:0.0 0.000007255387500000001 0.512 AML other m 2023-04-02T22:07:12.40
IV.ARVD.HHN. ML:0.6 0.000015276438 0.1024 AML other m 2023-04-02T22:07:15.12
IV.ARVD.HHE. ML:0.4 0.0000099575385 0.128 AML other m 2023-04-02T22:07:15.32
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