Earthquake (quarry blast) with magnitude of ML 0.7 on date 07-07-2021 and time 11:16:14 (Italy) in region 3 km E Piobbico (PU)

A magnitude ML 0.7 (quarry blast) earthquake occured in region: 3 km E Piobbico (PU), on

  • 07-07-2021 09:16:14 (UTC)
  • 07-07-2021 11:16:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5940, 12.5420 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
Piobbico PU 3 2029 2029
Urbania PU 9 7099 9128
Cagli PU 10 8731 17859
Apecchio PU 11 1882 19741
Acqualagna PU 11 4393 24134
Peglio PU 12 696 24830
Fermignano PU 13 8596 33426
Sant'Angelo in Vado PU 13 4133 37559
Cantiano PU 15 2245 39804
Urbino PU 17 15019 54823
Lunano PU 17 1527 56350
Mercatello sul Metauro PU 18 1378 57728
Piandimeleto PU 18 2167 59895
Frontone PU 18 1300 61195
Pietralunga PG 19 2111 63306
Belforte all'Isauro PU 19 769 64075

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km SW of Pesaro (94582 inhabitants)
47 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)
81 Km SE of Forlì (117913 inhabitants)
93 Km SE of Faenza (58541 inhabitants)
96 Km SE of Ravenna (159116 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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 2021-07-07
09:16:14
43.5943 12.5423 1 2021-12-29
11:12:29
Bollettino Sismico Italiano INGV 95332391
Reviewed
Rev100
ML 0.7 2021-07-07
09:16:14
43.5913 12.5508 4 2021-07-07
09:21:45
Sala Sismica INGV-Roma 92348731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-07 09:16:14 ± 0.16
Latitude 43.5943 ± 0.0090
Longitude 12.5423 ± 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 95332391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1050
Semi-minor axis of confidence ellipse (meter) 700
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 350
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
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) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.23472
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 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 92348731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-07 09:21:45

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 95332391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-12 07:42:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2021-07-07T09:16:19.33 0.3 undecidable manual P 132 0.2347 91 -0.39 68
IV.ATVO.HHZ. 2021-07-07T09:16:19.76 0.3 undecidable manual P 205 0.2338 91 0.06 72
IV.ATFO.HHZ. 2021-07-07T09:16:19.43 0.3 undecidable manual P 175 0.2284 91 -0.15 71
IV.PARC.HHZ. 2021-07-07T09:16:19.65 0.6 undecidable manual P 284 0.2266 91 0.12 48
IV.MPAG.EHZ. 2021-07-07T09:16:18.25 0.3 undecidable manual P 77 0.1610 92 0.17 72
IV.FRON.EHZ. 2021-07-07T09:16:17.93 0.3 undecidable manual P 120 0.1529 92 0.02 74
IV.ATPC.HNE. 2021-07-07T09:16:17.70 0.1 undecidable manual P 209 0.1295 92 0.32 93
IV.ATBU.EHE. 2021-07-07T09:16:17.32 0.1 undecidable manual P 178 0.1187 92 0.18 96
IV.APEC.HHZ. 2021-07-07T09:16:16.19 0.3 undecidable manual P 248 0.0953 93 -0.43 69
IV.PIEI.HHZ. 2021-07-07T09:16:15.75 0.1 positive manual P 185 0.0594 94 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHN. ML:0.9 0.0000499 0.26 AML other m 2021-07-07T09:16:19.63
IV.SSFR.HHE. ML:0.8 0.000038400000000000005 0.26 AML other m 2021-07-07T09:16:23.82
IV.PARC.HHN. ML:0.7 0.000030449999999999998 0.24 AML other m 2021-07-07T09:16:24.22
IV.PARC.HHE. ML:0.4 0.000015649999999999998 0.76 AML other m 2021-07-07T09:16:24.66
IV.ATVO.HHN. ML:0.7 0.00002815 1.14 AML other m 2021-07-07T09:16:26.39
IV.FRON.EHE. ML:0.7 0.00005115 0.96 AML other m 2021-07-07T09:16:26.48
IV.FRON.EHN. ML:0.7 0.00005300000000000001 1.16 AML other m 2021-07-07T09:16:26.06
IV.ATFO.HHE. ML:0.7 0.00003255 0.8 AML other m 2021-07-07T09:16:26.73
IV.ATFO.HHN. ML:0.7 0.0000346 0.46 AML other m 2021-07-07T09:16:28.40
IV.ATVO.HHE. ML:0.5 0.0000223 0.8 AML other m 2021-07-07T09:16:31.48
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download