Earthquake (quarry blast) with magnitude of ML 0.7 on date 11-04-2023 and time 08:15:09 (Italy) in region 5 km SW Urbania (PU)

A magnitude ML 0.7 (quarry blast) earthquake occured in region: 5 km SW Urbania (PU), on

  • 11-04-2023 06:15:09 (UTC)
  • 11-04-2023 08:15:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6410, 12.4820 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Urbania PU 5 7099 7099
Sant'Angelo in Vado PU 6 4133 11232
Piobbico PU 6 2029 13261
Peglio PU 6 696 13957
Apecchio PU 10 1882 15839
Lunano PU 11 1527 17366
Piandimeleto PU 11 2167 19533
Mercatello sul Metauro PU 12 1378 20911
Belforte all'Isauro PU 12 769 21680
Fermignano PU 14 8596 30276
Borgo Pace PU 15 606 30882
Acqualagna PU 16 4393 35275
Sassocorvaro PU 16 3504 38779
Urbino PU 16 15019 53798
Frontino PU 16 293 54091
Sestino AR 17 1355 55446
Cagli PU 17 8731 64177
Macerata Feltria PU 18 1990 66167
Carpegna PU 20 1674 67841
Pietrarubbia PU 20 660 68501

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km SW of Pesaro (94582 inhabitants)
47 Km S of Rimini (147750 inhabitants)
49 Km W of Fano (60888 inhabitants)
52 Km E of Arezzo (99543 inhabitants)
58 Km SE of Cesena (96758 inhabitants)
60 Km N of Perugia (166134 inhabitants)
74 Km SE of Forlì (117913 inhabitants)
78 Km N of Foligno (57155 inhabitants)
84 Km W of Ancona (100861 inhabitants)
86 Km SE of Faenza (58541 inhabitants)
89 Km S of Ravenna (159116 inhabitants)
99 Km E of Siena (53903 inhabitants)
100 Km E of Firenze (382808 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 0.7 2023-04-11
06:15:09
43.6413 12.482 1 2024-03-01
17:18:20
Bollettino Sismico Italiano INGV 124789571
Reviewed
Rev100
ML 0.6 2023-04-11
06:15:09
43.656 12.4907 7 2023-04-11
06:22:39
Sala Sismica INGV-Roma 116269971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-11 06:15:09 ± 0.08
Latitude 43.6413 ± 0.0045
Longitude 12.4820 ± 0.0075
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 124789571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 530
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
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 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29857
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 124789571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-22 12:35:39

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 116269971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-11 06:22:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SELL.HNZ. 2023-04-11T06:16:47.29 3.0 positive manual Pg 18.68 0
IV.MOCO.HHZ. 2023-04-11T06:16:41.97 3.0 undecidable manual Sg 7.52 0
AC.VLO.HHZ. 2023-04-11T06:16:40.91 3.0 negative manual Pn 3.6 0
IV.AIO.HHZ. 2023-04-11T06:16:29.10 3.0 undecidable manual Pn -4.15 0
CR.STON.BHZ. 2023-04-11T06:16:13.14 3.0 negative manual Pn 5.79 0
IV.USI.HHZ. 2023-04-11T06:16:12.99 3.0 positive manual Pn -3.96 0
IV.VENT.EHZ. 2023-04-11T06:16:00.07 3.0 undecidable manual Pg 9.98 0
NI.VINO.HHZ. 2023-04-11T06:15:55.05 3.0 undecidable manual Pg 8.94 0
IV.VAGA.HHZ. 2023-04-11T06:15:43.69 3.0 undecidable manual Pn -3.11 0
IV.RCAV.EHZ. 2023-04-11T06:15:35.48 3.0 undecidable manual Pn 0.61 0
IV.TRTR.HHZ. 2023-04-11T06:15:31.67 3.0 undecidable manual Pn 0.24 0
IV.IMOL.HNZ. 2023-04-11T06:15:27.46 3.0 undecidable manual S 0.05 0
IV.MCIV.CHZ. 2023-04-11T06:15:19.02 3.0 negative manual P -0.04 0
IV.SSFR.HHZ. 2023-04-11T06:15:16.08 0.3 undecidable manual P 133 33.1446 91 -0.22 69
IV.ATVO.HHZ. 2023-04-11T06:15:15.66 0.3 undecidable manual P 192 29.4483 91 0.12 71
IV.BADI.EHZ. 2023-04-11T06:15:14.48 0.3 undecidable manual P 233 24.0537 91 0.01 74
IV.ATPC.HNZ. 2023-04-11T06:15:13.53 0.3 undecidable manual P 186 17.9709 92 0.28 70
IV.PARC.HHZ. 2023-04-11T06:15:13.40 0.3 undecidable manual P 272 19.5693 91 -0.17 72
IV.NARO.HHZ. 2023-04-11T06:15:11.46 0.1 undecidable manual P 113 8.5803 93 0.08 99
IV.PIEI.HHZ. 2023-04-11T06:15:11.95 0.3 undecidable manual P 160 12.4764 92 -0.21 72
IV.PE3.EHZ. 2023-04-11T06:15:10.96 0.1 undecidable manual P 11 6.1938 95 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHE. ML:0.5 0.00005005 0.38 AML other m 2023-04-11T06:15:15.26
IV.PIEI.HHN. ML:0.3 0.000030399999999999997 1.16 AML other m 2023-04-11T06:15:17.64
IV.SSFR.HHE. ML:0.9 0.00003325 0.52 AML other m 2023-04-11T06:15:22.37
IV.SSFR.HHN. ML:0.9 0.000042 0.48 AML other m 2023-04-11T06:15:22.49
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