Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 02-12-2021 and time 08:04:56 (Italy) in region 3 km SW Bolognola (MC)

A magnitude ML 1.3 earthquake occured in region: 3 km SW Bolognola (MC), on

  • 02-12-2021 07:04:56 (UTC)
  • 02-12-2021 08:04:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9680, 13.2100 at 8 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
Bolognola MC 3 142 142
Ussita MC 6 444 586
Acquacanina MC 8 121 707
Fiastra MC 9 559 1266
Castelsantangelo sul Nera MC 9 281 1547
Sarnano MC 11 3264 4811
Visso MC 11 1107 5918
Montefortino FM 11 1178 7096
Amandola FM 12 3629 10725
Montemonaco AP 12 604 11329
Fiordimonte MC 12 202 11531
Pievebovigliana MC 15 866 12397
Gualdo MC 15 815 13212
Pieve Torina MC 16 1458 14670
Cessapalombo MC 16 512 15182
Comunanza AP 17 3166 18348
Preci PG 17 724 19072
Monte Cavallo MC 17 145 19217
Montegallo AP 17 523 19740
San Ginesio MC 18 3498 23238
Muccia MC 19 915 24153
Camporotondo di Fiastrone MC 19 563 24716
Caldarola MC 19 1823 26539
Smerillo FM 20 365 26904

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
53 Km NW of Teramo (54892 inhabitants)
65 Km NE of Terni (111501 inhabitants)
69 Km E of Perugia (166134 inhabitants)
70 Km N of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
99 Km S of Fano (60888 inhabitants)
99 Km NW of Pescara (121014 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 1.3 2021-12-02
07:04:56		 42.9685 13.2102 8 2021-12-02
07:18:50		 Sala Sismica INGV-Roma 98040681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-02 07:04:56 ± 0.5
Latitude 42.9685 ± 0.0081
Longitude 13.2102 ± 0.0111
Depth (km) 8 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98040681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 950
Semi-minor axis of confidence ellipse (meter) 310
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 310
Circular confidence region, given by single value of horizontal uncertainty (meter) 950.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18346
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.7
Num. used stations 14
Type of magnitude ML
Reference to an origin 98040681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-02 07:18:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2021-12-02T07:06:27.68 3.0 undecidable manual Pg 17.940001 0
IX.CSG3.HNZ.01 2021-12-02T07:06:26.62 3.0 undecidable manual Sg 3.64 0
IV.TDS.HHZ. 2021-12-02T07:06:05.03 3.0 undecidable manual Pg 7.61 0
IV.ZEN8.EHZ. 2021-12-02T07:05:59.08 3.0 undecidable manual Sg 2.22 0
IX.RSF3.HHZ.02 2021-12-02T07:05:42.31 3.0 undecidable manual Pg 6.5 0
IV.LAV9.HHZ. 2021-12-02T07:05:38.39 3.0 undecidable manual Sg -2.38 0
IV.MF5.EHZ. 2021-12-02T07:05:04.64 0.1 undecidable manual S 84 20.3685 112 0.82 78
IV.CRTC.HHZ. 2021-12-02T07:05:03.17 3.0 undecidable manual S -0.63 0
IV.NRCA.HHZ. 2021-12-02T07:05:03.18 0.1 undecidable manual S 208 16.872 116 0.46 90
IV.GUMA.HHZ. 2021-12-02T07:05:02.15 0.1 undecidable manual S 44 14.5743 120 0.14 96
IV.FDMO.HHZ. 2021-12-02T07:05:01.60 0.1 undecidable manual S 307 12.4764 124 0.2 96
IV.MF5.EHZ. 2021-12-02T07:05:00.78 1.0 undecidable manual P 84 20.3685 112 0.19 24
IV.MMO1.EHZ. 2021-12-02T07:05:00.63 0.1 undecidable manual S 129 12.1767 125 -0.68 83
IV.NRCA.HHZ. 2021-12-02T07:05:00.01 0.6 undecidable manual P 208 16.872 116 0.06 49
IV.FDMO.HHZ. 2021-12-02T07:04:59.17 1.0 undecidable manual P 307 12.4764 124 -0.02 25
IV.MC2.EHZ. 2021-12-02T07:04:59.85 0.1 undecidable manual S 195 6.5934 142 -0.03 100
IV.GUMA.HHZ. 2021-12-02T07:04:59.66 0.6 positive manual P 44 14.5743 120 0.12 48
IV.MMO1.EHZ. 2021-12-02T07:04:58.72 0.6 undecidable manual P 129 12.1767 125 -0.42 46
IV.GAVE.EHZ. 2021-12-02T07:04:58.14 3.0 positive manual P -3.51 0
IV.CSP1.EHZ. 2021-12-02T07:04:58.57 0.1 undecidable manual P 358 13.6752 122 -0.82 79
IV.MC2.EHZ. 2021-12-02T07:04:58.23 0.1 negative manual P 195 6.5934 142 -0.08 99
IT.FIE.HGZ. 2021-12-02T07:04:56.01 3.0 undecidable manual P -4.63 0
IV.BRSN.EHZ. 2021-12-02T07:04:56.04 3.0 undecidable manual Pn -5.09 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.9 0.00028875 1.46 AML other m 2021-12-02T07:05:00.76
IV.FDMO.HHN. ML:0.7 0.000059050000000000006 0.44 AML other m 2021-12-02T07:05:01.99
IV.FDMO.HHE. ML:0.7 0.00005355 0.42 AML other m 2021-12-02T07:05:01.89
IV.MMO1.EHN. ML:0.9 0.00010325 1.26 AML other m 2021-12-02T07:05:01.90
IV.MMO1.EHE. ML:0.9 0.00009429999999999999 0.48 AML other m 2021-12-02T07:05:02.54
IV.GUMA.HHE. ML:1.3 0.000195 1.2 AML other m 2021-12-02T07:05:02.13
IV.GUMA.HHN. ML:1.3 0.000216 0.42 AML other m 2021-12-02T07:05:02.86
IV.NRCA.HHN. ML:1.0 0.0000857 0.88 AML other m 2021-12-02T07:05:04.21
IV.NRCA.HHE. ML:1.0 0.00009334999999999999 0.74 AML other m 2021-12-02T07:05:04.68
IV.GAVE.EHE. ML:1.8 0.0002145 0.94 AML other m 2021-12-02T07:05:05.01
IX.RSF3.HNE.01 ML:3.6 0.000642 1.18 AML other m 2021-12-02T07:06:43.29
IX.RSF3.HHE.02 ML:3.7 0.0008209999999999999 1.18 AML other m 2021-12-02T07:06:43.29
IX.RSF3.HNN.01 ML:3.7 0.0007911 0.66 AML other m 2021-12-02T07:06:43.33
IX.RSF3.HHN.02 ML:3.6 0.000669 0.66 AML other m 2021-12-02T07:06:43.33
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