Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 07-12-2021 and time 12:01:49 (Italy) in region 6 km NW Piobbico (PU)

A magnitude ML 0.4 earthquake occured in region: 6 km NW Piobbico (PU), on

  • 07-12-2021 11:01:49 (UTC)
  • 07-12-2021 12:01:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6320, 12.4720 at 6 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 6 2029 2029
Urbania PU 6 7099 9128
Sant'Angelo in Vado PU 6 4133 13261
Peglio PU 7 696 13957
Apecchio PU 9 1882 15839
Mercatello sul Metauro PU 11 1378 17217
Piandimeleto PU 11 2167 19384
Lunano PU 11 1527 20911
Belforte all'Isauro PU 12 769 21680
Borgo Pace PU 15 606 22286
Fermignano PU 15 8596 30882
Acqualagna PU 16 4393 35275
Sestino AR 16 1355 36630
Frontino PU 17 293 36923
Sassocorvaro PU 17 3504 40427
Urbino PU 17 15019 55446
Cagli PU 17 8731 64177
Macerata Feltria PU 19 1990 66167
Carpegna PU 20 1674 67841

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km SW of Pesaro (94582 inhabitants)
48 Km S of Rimini (147750 inhabitants)
50 Km W of Fano (60888 inhabitants)
51 Km E of Arezzo (99543 inhabitants)
59 Km N of Perugia (166134 inhabitants)
59 Km SE of Cesena (96758 inhabitants)
74 Km SE of Forlì (117913 inhabitants)
78 Km N of Foligno (57155 inhabitants)
84 Km W of Ancona (100861 inhabitants)
87 Km SE of Faenza (58541 inhabitants)
90 Km S of Ravenna (159116 inhabitants)
98 Km E of Siena (53903 inhabitants)
99 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
Reviewed
Rev100 		ML 0.4 2021-12-07
11:01:49		 43.6325 12.4722 6 2021-12-07
11:12:12		 Sala Sismica INGV-Roma 98236271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-07 11:01:49 ± 0.21
Latitude 43.6325 ± 0.0045
Longitude 12.4722 ± 0.0062
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98236271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 515
Semi-minor axis of confidence ellipse (meter) 300
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.23562
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 98236271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-07 11:12:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HVIT.HHZ. 2021-12-07T11:03:21.51 3.0 undecidable manual Pn -3.96 0
IV.OVO.HHZ. 2021-12-07T11:03:17.75 3.0 undecidable manual Sg 5.75 0
OT.OT05.EHZ. 2021-12-07T11:03:14.04 3.0 undecidable manual Sg 7.15 0
IV.ZEN8.EHZ. 2021-12-07T11:03:04.44 3.0 undecidable manual Sg 2.16 0
OT.OT14.EHZ. 2021-12-07T11:02:57.31 3.0 undecidable manual Sn -9.83 0
MN.TRI.HHZ. 2021-12-07T11:02:57.26 3.0 undecidable manual Sg 4.25 0
IV.AGLI.HHZ. 2021-12-07T11:02:52.93 3.0 undecidable manual Pg 8.45 0
IX.PGN3.HHZ.02 2021-12-07T11:02:38.41 3.0 undecidable manual Pn -5.78 0
IV.SGRT.HHZ. 2021-12-07T11:02:25.70 3.0 positive manual Pn -5.79 0
IV.ZEN8.EHZ. 2021-12-07T11:02:24.24 3.0 negative manual Pn -4.53 0
IV.ARRO.EHZ. 2021-12-07T11:02:11.73 3.0 undecidable manual Sn -9.99 0
IV.IMOL.HNZ. 2021-12-07T11:02:05.12 3.0 positive manual Pg -4.06 0
IV.MURB.HHZ. 2021-12-07T11:02:01.39 3.0 undecidable manual S 0
IV.TB03.DHZ.01 2021-12-07T11:01:58.32 0.3 undecidable manual S 191 26.1516 104 -0.16 94
IV.MURB.HHZ. 2021-12-07T11:01:58.07 3.0 undecidable manual P 0
IV.PP3.EHZ. 2021-12-07T11:01:57.17 3.0 negative manual P -0.67 0
IV.PARC.HHZ. 2021-12-07T11:01:56.15 0.3 undecidable manual S 276 18.87 109 0.1 97
IV.ATBU.HNN. 2021-12-07T11:01:56.16 0.3 undecidable manual S 161 18.4704 109 0.25 94
IV.ATPC.HHN. 2021-12-07T11:01:55.41 0.3 undecidable manual S 184 16.872 111 0 99
IV.TB03.DHZ.01 2021-12-07T11:01:54.78 0.3 undecidable manual P 191 26.1516 104 0.25 93
IV.NARO.HHZ. 2021-12-07T11:01:53.09 0.3 undecidable manual S 105 8.9799 125 0.11 98
IV.PIEI.HHZ. 2021-12-07T11:01:53.63 0.3 undecidable manual S 155 11.877 118 -0.19 96
IV.ATBU.HNN. 2021-12-07T11:01:52.95 0.3 undecidable manual P 161 18.4704 109 -0.11 97
IV.ATPC.HHN. 2021-12-07T11:01:52.93 0.3 undecidable manual P 184 16.872 111 0.17 96
IV.PARC.HHZ. 2021-12-07T11:01:52.97 0.3 undecidable manual P 276 18.87 109 -0.16 96
IV.PIEI.HHZ. 2021-12-07T11:01:51.59 0.3 undecidable manual P 155 11.877 118 -0.26 95
IV.PE3.EHZ. 2021-12-07T11:01:51.61 3.0 positive manual P -1.53 0
IV.NARO.HHZ. 2021-12-07T11:01:51.34 0.3 undecidable manual P 105 8.9799 125 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NARO.HHE. ML:0.3 0.000033748985000000004 0.0192 AML other m 2021-12-07T11:01:53.19
IV.NARO.HHN. ML:0.4 0.00004519890999999999 0.064 AML other m 2021-12-07T11:01:53.54
IV.PIEI.HHE. ML:0.2 0.000020268343999999997 0.0768 AML other m 2021-12-07T11:01:54.04
IV.PIEI.HHN. ML:0.2 0.000018138605000000003 0.0576 AML other m 2021-12-07T11:01:53.83
IV.MURB.HHE. ML:1.0 0.0000318615685 0.4032 AML other m 2021-12-07T11:02:01.96
IV.MURB.HHN. ML:1.0 0.000034273485 0 AML other m 2021-12-07T11:02:01.73
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