Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.0 on date 26-06-2020 and time 06:42:31 (UTC) in region 2 km E Piobbico (PU)

A magnitude ML 1.0 (quarry blast) earthquake occured in region: 2 km E Piobbico (PU), on

  • 26-06-2020 06:42:31 (UTC)
  • 26-06-2020 08:42:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5960, 12.5350 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 2 2029 2029
Urbania PU 8 7099 9128
Apecchio PU 10 1882 11010
Cagli PU 11 8731 19741
Acqualagna PU 11 4393 24134
Peglio PU 12 696 24830
Sant'Angelo in Vado PU 13 4133 28963
Fermignano PU 13 8596 37559
Cantiano PU 15 2245 39804
Urbino PU 17 15019 54823
Lunano PU 17 1527 56350
Mercatello sul Metauro PU 17 1378 57728
Piandimeleto PU 17 2167 59895
Belforte all'Isauro PU 19 769 60664
Frontone PU 19 1300 61964
Pietralunga PG 19 2111 64075

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km SW of Pesaro (94582 inhabitants)
48 Km SW of Fano (60888 inhabitants)
52 Km S of Rimini (147750 inhabitants)
55 Km E of Arezzo (99543 inhabitants)
56 Km N of Perugia (166134 inhabitants)
65 Km SE of Cesena (96758 inhabitants)
72 Km N of Foligno (57155 inhabitants)
79 Km W of Ancona (100861 inhabitants)
80 Km SE of Forlì (117913 inhabitants)
93 Km SE of Faenza (58541 inhabitants)
95 Km S 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 1.0 2020-06-26
06:42:31		 43.5958 12.5353 1 2020-11-19
12:36:56		 Bollettino Sismico Italiano INGV 81731501
Reviewed
Rev100 		ML 1.2 2020-06-26
06:42:30		 43.6202 12.5335 13 2020-06-26
06:48:32		 Sala Sismica INGV-Roma 80515861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-26 06:42:31 ± 0.18
Latitude 43.5958 ± 0.0117
Longitude 12.5353 ± 0.0137
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 81731501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1340
Semi-minor axis of confidence ellipse (meter) 1060
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 349
Circular confidence region, given by single value of horizontal uncertainty (meter) 1340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.52
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31027
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 81731501
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-07 10:29:07

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 80515861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-26 06:48:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-06-26T06:42:47.73 3.0 undecidable manual S -0.53 0
IV.IMOL.HNZ. 2020-06-26T06:42:46.86 3.0 negative manual P -0.12 0
IV.SENI.HNZ. 2020-06-26T06:42:42.58 3.0 undecidable manual P 2.49 0
IV.ARVD.HHZ. 2020-06-26T06:42:37.07 0.1 undecidable manual P 108 34.4433 91 -0.85 77
IV.ATFO.HHZ. 2020-06-26T06:42:36.01 0.3 undecidable manual P 173 25.5522 91 -0.15 73
IV.ATVO.HHZ. 2020-06-26T06:42:36.08 0.1 undecidable manual P 204 25.8519 91 -0.13 98
IV.SSFR.HHZ. 2020-06-26T06:42:36.02 0.1 undecidable manual P 132 26.6511 91 -0.34 93
IV.BADI.EHZ. 2020-06-26T06:42:35.79 0.1 undecidable manual P 248 25.2525 91 -0.3 94
IV.PARC.HHZ. 2020-06-26T06:42:35.28 0.1 undecidable manual P 284 24.5532 91 -0.66 85
IV.MPAG.EHZ. 2020-06-26T06:42:34.50 0.1 undecidable manual P 78 18.3705 92 -0.21 97
IV.ATPI.EHZ. 2020-06-26T06:42:34.98 0.1 undecidable manual P 214 19.3695 91 0.08 100
IV.FRON.EHZ. 2020-06-26T06:42:34.66 0.3 undecidable manual P 119 17.5713 92 0.11 75
IV.PIEI.HHZ. 2020-06-26T06:42:33.25 0.1 undecidable manual P 180 6.6933 94 0.88 80
IV.APEC.HHZ. 2020-06-26T06:42:33.61 0.1 undecidable manual P 246 10.1787 93 0.55 91
IV.PE3.EHZ. 2020-06-26T06:42:33.48 0.1 undecidable manual P 344 11.5773 92 0.14 100
IV.NARO.HHZ. 2020-06-26T06:42:32.80 0.1 undecidable manual P 65 3.996 97 0.97 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APEC.HHN. ML:0.8 0.0001315 0.28 AML other m 2020-06-26T06:42:36.17
IV.APEC.HHE. ML:0.7 0.00009389999999999999 0.82 AML other m 2020-06-26T06:42:37.58
IV.MPAG.EHE. ML:1.0 0.00010725000000000002 1.94 AML other m 2020-06-26T06:42:37.01
IV.MPAG.EHN. ML:1.0 0.00009834999999999999 1.92 AML other m 2020-06-26T06:42:38.03
IV.FRON.EHE. ML:0.6 0.00004015 1.22 AML other m 2020-06-26T06:42:38.72
IV.PE3.EHN. ML:1.3 0.00030100000000000005 1.1 AML other m 2020-06-26T06:42:38.23
IV.FRON.EHN. ML:1.0 0.00010015000000000001 0.3 AML other m 2020-06-26T06:42:38.25
IV.ATPI.EHN. ML:0.8 0.0000494 0.24 AML other m 2020-06-26T06:42:38.93
IV.ATPI.EHE. ML:1.0 0.00007819999999999999 1.74 AML other m 2020-06-26T06:42:39.97
IV.PE3.EHE. ML:1.2 0.00023299999999999997 1.58 AML other m 2020-06-26T06:42:39.12
IV.PARC.HHN. ML:0.8 0.0000381 0.24 AML other m 2020-06-26T06:42:39.39
IV.PARC.HHE. ML:0.7 0.000029 0.3 AML other m 2020-06-26T06:42:39.31
IV.BADI.EHN. ML:1.3 0.00011255000000000001 0.4 AML other m 2020-06-26T06:42:40.43
IV.BADI.EHE. ML:1.3 0.00013550000000000001 0.14 AML other m 2020-06-26T06:42:40.42
IV.ATVO.HHN. ML:1.3 0.00011509999999999999 0.24 AML other m 2020-06-26T06:42:40.72
IV.ATVO.HHE. ML:1.1 0.00008460000000000001 0.32 AML other m 2020-06-26T06:42:40.81
IV.SSFR.HHE. ML:1.4 0.000157 0.46 AML other m 2020-06-26T06:42:41.67
IV.SSFR.HHN. ML:1.3 0.000114 0.98 AML other m 2020-06-26T06:42:42.13
IV.ARVD.HHN. ML:0.9 0.00003485 0.14 AML other m 2020-06-26T06:42:42.89
IV.ARVD.HHE. ML:1.0 0.000037749999999999996 0.88 AML other m 2020-06-26T06:42:43.52
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