Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 0.8 on date 30-01-2023 and time 07:43:36 (UTC) in region 4 km E Piobbico (PU)

A magnitude ML 0.8 (quarry blast) earthquake occured in region: 4 km E Piobbico (PU), on

  • 30-01-2023 07:43:36 (UTC)
  • 30-01-2023 08:43:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5730, 12.5530 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.

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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
Piobbico PU 4 2029 2029
Cagli PU 8 8731 10760
Acqualagna PU 11 4393 15153
Apecchio PU 11 1882 17035
Urbania PU 11 7099 24134
Cantiano PU 13 2245 26379
Fermignano PU 14 8596 34975
Peglio PU 15 696 35671
Sant'Angelo in Vado PU 15 4133 39804
Frontone PU 16 1300 41104
Pietralunga PG 17 2111 43215
Urbino PU 18 15019 58234
Mercatello sul Metauro PU 19 1378 59612
Lunano PU 20 1527 61139
Serra Sant'Abbondio PU 20 1027 62166

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km SW of Pesaro (94582 inhabitants)
48 Km SW of Fano (60888 inhabitants)
53 Km N of Perugia (166134 inhabitants)
54 Km S of Rimini (147750 inhabitants)
55 Km E of Arezzo (99543 inhabitants)
68 Km SE of Cesena (96758 inhabitants)
70 Km N of Foligno (57155 inhabitants)
78 Km W of Ancona (100861 inhabitants)
83 Km SE of Forlì (117913 inhabitants)
96 Km SE of Faenza (58541 inhabitants)
98 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 0.8 2023-01-30
07:43:36		 43.5733 12.5533 1 2024-03-01
17:18:04		 Bollettino Sismico Italiano INGV 116541451
Reviewed
Rev100 		ML 1.6 2023-01-30
07:43:36		 43.5803 12.5558 8 2023-01-30
08:14:20		 Sala Sismica INGV-Roma 113905301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-30 07:43:36 ± 0.13
Latitude 43.5733 ± 0.0081
Longitude 12.5533 ± 0.0099
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 116541451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 910
Semi-minor axis of confidence ellipse (meter) 790
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 338
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24012
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.9
Num. used stations 4
Type of magnitude ML
Reference to an origin 113905301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-30 08:14:20

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 116541451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-10 10:24:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ORI.HHZ. 2023-01-30T07:45:02.60 3.0 undecidable manual Pg 19.42 0
GU.RORO.HHZ. 2023-01-30T07:44:58.05 3.0 undecidable manual Sn 1.49 0
CH.FUORN.HHZ. 2023-01-30T07:44:52.51 3.0 undecidable manual Sn -0.23 0
IV.VVLD.HHZ. 2023-01-30T07:44:32.67 3.0 undecidable manual Sn -5.45 0
IV.CELB.HHZ. 2023-01-30T07:44:30.92 3.0 undecidable manual Sg 0.13 0
IV.GUMA.HHZ. 2023-01-30T07:43:49.45 3.0 positive manual P -1.46 0
IV.PARC.HHZ. 2023-01-30T07:43:41.44 0.3 undecidable manual P 288 26.6511 91 -0.73 60
IV.SSFR.HHZ. 2023-01-30T07:43:41.19 0.1 undecidable manual P 129 23.8539 91 -0.43 89
IV.ATVO.HHZ. 2023-01-30T07:43:41.63 0.3 undecidable manual P 209 24.2535 91 -0.07 72
IV.TB02.DHZ.01 2023-01-30T07:43:41.96 0.3 undecidable manual P 207 25.3524 91 0.05 72
IV.MPAG.EHZ. 2023-01-30T07:43:40.78 0.3 undecidable manual P 69 17.6712 92 0.4 68
IV.ATSC.EHE. 2023-01-30T07:43:40.66 0.3 undecidable manual P 147 19.7691 91 -0.13 72
IV.ATPI.EHZ. 2023-01-30T07:43:40.68 0.1 undecidable manual P 222 18.2706 92 0.19 95
IV.PE3.EHN. 2023-01-30T07:43:39.88 0.3 undecidable manual P 341 14.3745 92 0.17 72
IV.FRON.EHZ. 2023-01-30T07:43:39.90 0.3 undecidable manual P 114 15.1737 92 0.03 74
IV.ATPC.HHE. 2023-01-30T07:43:39.73 0.1 positive manual P 217 12.876 92 0.32 93
IV.SFI.EHZ. 2023-01-30T07:43:37.30 3.0 undecidable manual P -9.99 0
IV.PIEI.HHZ. 2023-01-30T07:43:37.76 0.1 positive manual P 199 4.3956 96 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHN. ML:0.8 0.00004675 1.04 AML other m 2023-01-30T07:43:42.14
IV.SSFR.HHE. ML:0.8 0.00004145 0.78 AML other m 2023-01-30T07:43:49.42
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