Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 0.7 on date 28-03-2023 and time 06:12:37 (UTC) in region 4 km E Piobbico (PU)

A magnitude ML 0.7 (quarry blast) earthquake occured in region: 4 km E Piobbico (PU), on

  • 28-03-2023 06:12:37 (UTC)
  • 28-03-2023 08:12:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5800, 12.5570 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 10 4393 15153
Urbania PU 10 7099 22252
Apecchio PU 11 1882 24134
Fermignano PU 13 8596 32730
Cantiano PU 13 2245 34975
Peglio PU 14 696 35671
Sant'Angelo in Vado PU 15 4133 39804
Frontone PU 16 1300 41104
Urbino PU 18 15019 56123
Pietralunga PG 18 2111 58234
Lunano PU 19 1527 59761
Mercatello sul Metauro PU 19 1378 61139
Piandimeleto PU 20 2167 63306
Serra Sant'Abbondio PU 20 1027 64333

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km SW of Pesaro (94582 inhabitants)
48 Km SW of Fano (60888 inhabitants)
54 Km S of Rimini (147750 inhabitants)
54 Km N of Perugia (166134 inhabitants)
56 Km E of Arezzo (99543 inhabitants)
67 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)
95 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 0.7 2023-03-28
06:12:37		 43.5798 12.5573 1 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124320771
Reviewed
Rev100 		ML 0.9 2023-03-28
06:12:36		 43.6155 12.5502 10 2023-03-28
06:36:56		 Sala Sismica INGV-Roma 115814261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-28 06:12:37 ± 0.1
Latitude 43.5798 ± 0.0063
Longitude 12.5573 ± 0.0087
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 124320771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 850
Semi-minor axis of confidence ellipse (meter) 520
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
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 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.23742
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.5
Num. used stations 10
Type of magnitude ML
Reference to an origin 124320771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-28 11:37:46

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 115814261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-28 06:36:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATVO.HHZ. 2023-03-28T06:12:42.62 0.3 undecidable manual P 209 25.0527 91 -0.12 71
IV.BADI.EHZ. 2023-03-28T06:12:42.67 0.3 undecidable manual P 253 26.3514 91 -0.33 68
IV.SSFR.HHZ. 2023-03-28T06:12:42.20 0.1 undecidable manual P 131 24.1536 91 -0.35 91
IV.MPAG.EHZ. 2023-03-28T06:12:41.40 0.1 undecidable manual P 71 17.1717 92 0.25 94
IV.ATSC.EHN. 2023-03-28T06:12:41.63 0.6 undecidable manual P 149 20.1687 91 -0.13 48
IV.ATPI.EHZ. 2023-03-28T06:12:41.58 0.1 undecidable manual P 221 18.9699 92 0.05 97
IV.ATBU.EHE. 2023-03-28T06:12:40.30 0.1 undecidable manual P 184 11.5773 92 0.26 94
IV.FRON.EHZ. 2023-03-28T06:12:40.74 0.3 undecidable manual P 117 15.1737 92 -0.02 74
IV.ATPC.HHE. 2023-03-28T06:12:40.67 0.1 undecidable manual P 216 13.6752 92 0.22 95
IV.NARO.HHZ. 2023-03-28T06:12:38.47 0.1 undecidable manual P 29 3.8961 97 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPAG.EHE. ML:0.3 0.000018561286000000003 0.8608 AML other m 2023-03-28T06:12:40.94
IV.FRON.EHE. ML:0.5 0.00003688605 0.6976 AML other m 2023-03-28T06:12:45.90
IV.MPAG.HNN. ML:2.1 0.0012349417499999999 1.232 AML other m 2023-03-28T06:12:45.07
IV.MPAG.HNE. ML:2.1 0.001225598 1.232 AML other m 2023-03-28T06:12:45.07
IV.FRON.EHN. ML:0.2 0.000021569810000000002 1.8592 AML other m 2023-03-28T06:12:46.96
IV.SSFR.HHE. ML:0.6 0.000031143905 1.76 AML other m 2023-03-28T06:12:47.93
IV.SSFR.HNN. ML:1.4 0.00016966775 0.6496 AML other m 2023-03-28T06:12:47.19
IV.SSFR.HHN. ML:0.8 0.00004078351 1.2608 AML other m 2023-03-28T06:12:47.86
IV.SSFR.HNE. ML:1.4 0.0001599457 0.7904 AML other m 2023-03-28T06:12:48.57
IV.MPAG.EHN. ML:0.3 0.000018132671000000004 0.3808 AML other m 2023-03-28T06:12:50.03
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