Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 04-11-2020 and time 15:34:17 (UTC) in region 7 km E Civitella di Romagna (FC)

A magnitude ML 1.2 earthquake occured in region: 7 km E Civitella di Romagna (FC), on

  • 04-11-2020 15:34:17 (UTC)
  • 04-11-2020 16:34:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0220, 12.0260 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Civitella di Romagna FC 7 3786 3786
Galeata FC 10 2516 6302
Predappio FC 10 6346 12648
Meldola FC 12 9970 22618
Santa Sofia FC 13 4136 26754
Sarsina FC 15 3446 30200
Rocca San Casciano FC 15 1910 32110
Mercato Saraceno FC 15 6886 38996
Dovadola FC 16 1653 40649
Bertinoro FC 17 11059 51708
Castrocaro Terme e Terra del Sole FC 18 6426 58134
Bagno di Romagna FC 19 6026 64160
Portico e San Benedetto FC 20 756 64916

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Cesena (96758 inhabitants)
23 Km S of Forlì (117913 inhabitants)
32 Km SE of Faenza (58541 inhabitants)
43 Km W of Rimini (147750 inhabitants)
45 Km SE of Imola (69797 inhabitants)
46 Km SW of Ravenna (159116 inhabitants)
63 Km N of Arezzo (99543 inhabitants)
68 Km E of Firenze (382808 inhabitants)
72 Km W of Pesaro (94582 inhabitants)
74 Km E of Scandicci (50609 inhabitants)
76 Km SE of Bologna (386663 inhabitants)
76 Km E of Prato (191150 inhabitants)
82 Km W of Fano (60888 inhabitants)
89 Km E of Pistoia (90315 inhabitants)
96 Km NE of Siena (53903 inhabitants)
96 Km SE of Ferrara (133155 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 1.2 2020-11-04
15:34:17		 44.0217 12.0263 8 2021-02-26
14:56:16		 Bollettino Sismico Italiano INGV 86549631
Reviewed
Rev100 		ML 1.3 2020-11-04
15:34:16		 44.0535 12.0238 7 2020-11-04
15:43:20		 Sala Sismica INGV-Roma 84449891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-04 15:34:17 ± 0.33
Latitude 44.0217 ± 0.0126
Longitude 12.0263 ± 0.0225
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86549631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1731
Semi-minor axis of confidence ellipse (meter) 1222
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 1730.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.69338
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 86549631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-25 03:59:05

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 84449891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-04 15:43:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.BNI.HHZ. 2020-11-04T15:36:11.61 3.0 undecidable manual Sn 5.1 0
IV.ISPIC.HNZ. 2020-11-04T15:36:10.55 3.0 undecidable manual Pn 1.96 0
IV.SGTA.HHZ. 2020-11-04T15:36:06.34 3.0 undecidable manual Sn 2.4 0
IV.PAOL.HHZ. 2020-11-04T15:35:52.19 3.0 undecidable manual Sn -5.17 0
IV.ERC.EHZ. 2020-11-04T15:35:44.24 3.0 undecidable manual Pn -2.73 0
IV.VTIR.HHZ. 2020-11-04T15:35:26.81 3.0 positive manual Pg 11.51 0
GU.GENL.EHZ. 2020-11-04T15:35:25.84 3.0 undecidable manual Sn 1.64 0
IV.VULT.HHZ. 2020-11-04T15:35:21.51 3.0 positive manual Pn 0.86 0
IT.PLTA.HNZ. 2020-11-04T15:35:06.88 3.0 undecidable manual Pn 1.47 0
IV.RIBO.EHZ.01 2020-11-04T15:34:58.65 3.0 undecidable manual S -2.99 0
IV.FAGN.HHZ. 2020-11-04T15:34:54.74 3.0 positive manual Pg 1.08 0
IV.ZONE.HHZ. 2020-11-04T15:34:51.87 3.0 negative manual Pn -2.7 0
GU.POPM.HHZ. 2020-11-04T15:34:35.23 3.0 positive manual P -0.29 0
IV.CRE.HHZ. 2020-11-04T15:34:33.10 0.3 undecidable manual S 188 45.1215 50 1 54
IV.RUFI.EHZ. 2020-11-04T15:34:32.90 0.6 undecidable manual S 244 46.0206 50 0.54 43
IV.ARVD.HHZ. 2020-11-04T15:34:31.17 3.0 positive manual P -4.26 0
IV.RINC.HHZ. 2020-11-04T15:34:30.10 0.6 undecidable manual S 246 36.741 50 0.23 48
IV.CAFI.HHZ. 2020-11-04T15:34:30.75 0.3 undecidable manual P 184 76.9674 50 0.11 69
IV.BRIS.HNZ. 2020-11-04T15:34:29.20 0.6 undecidable manual S 318 30.5472 105 1.2 34
IV.ASQU.HHZ. 2020-11-04T15:34:28.71 0.6 undecidable manual S 217 31.3464 105 0.46 48
IV.SEI.HHZ. 2020-11-04T15:34:26.83 0.3 undecidable manual P 274 53.4021 50 -0.17 73
IV.RUFI.EHZ. 2020-11-04T15:34:25.08 0.3 undecidable manual P 244 46.0206 50 -0.79 61
IV.CRE.HHZ. 2020-11-04T15:34:25.15 0.3 undecidable manual P 188 45.1215 50 -0.57 67
IV.SFI.EHZ. 2020-11-04T15:34:24.80 0.6 undecidable manual S 228 19.3695 113 0.5 48
IV.CPGN.EHZ. 2020-11-04T15:34:24.42 0.1 undecidable manual P 136 33.9438 104 0.42 94
IV.BRIS.HNZ. 2020-11-04T15:34:23.46 0.3 undecidable manual P 318 30.5472 105 0.11 76
IV.RINC.HHZ. 2020-11-04T15:34:23.76 0.1 undecidable manual P 246 36.741 50 -0.67 88
IV.ASQU.HHZ. 2020-11-04T15:34:22.89 0.1 undecidable manual P 217 31.3464 105 -0.61 87
IV.SFI.EHZ. 2020-11-04T15:34:21.01 0.1 positive manual P 228 19.3695 113 -0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHE. ML:1.3 0.00014950000000000003 0.88 AML other m 2020-11-04T15:34:26.44
IV.ASQU.HHN. ML:1.1 0.0000589 0.18 AML other m 2020-11-04T15:34:30.44
IV.SFI.EHN. ML:1.3 0.0001535 0.42 AML other m 2020-11-04T15:34:30.50
IV.ASQU.HHE. ML:1.2 0.00008155000000000002 0.62 AML other m 2020-11-04T15:34:33.07
IV.RINC.HHN. ML:1.3 0.0000696 0.4 AML other m 2020-11-04T15:34:33.46
IV.RUFI.EHN. ML:1.2 0.000049878455000000004 0.2816 AML other m 2020-11-04T15:34:34.16
IV.RINC.HHE. ML:1.4 0.0001094 1.62 AML other m 2020-11-04T15:34:35.94
IV.CRE.HHN. ML:1.3 0.000055588 1.744 AML other m 2020-11-04T15:34:36.06
IV.SEI.HHE. ML:1.6 0.00008410000000000001 0.48 AML other m 2020-11-04T15:34:38.38
IV.SEI.HHN. ML:1.9 0.0001735 0.34 AML other m 2020-11-04T15:34:38.93
IV.RUFI.EHE. ML:1.1 0.000042202234999999996 0.384 AML other m 2020-11-04T15:34:38.78
IV.CRE.HHE. ML:0.9 0.000024410525 1.0016 AML other m 2020-11-04T15:34:40.68
IV.CAFI.HHN. ML:1.0 0.000013026119999999999 0.2688 AML other m 2020-11-04T15:34:45.24
IV.CAFI.HHE. ML:0.8 0.00001191617 0.384 AML other m 2020-11-04T15:34:45.40
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