Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 17-09-2020 and time 23:07:26 (UTC) in region 6 km W Montiano (FC)

A magnitude ML 1.3 earthquake occured in region: 6 km W Montiano (FC), on

  • 17-09-2020 23:07:26 (UTC)
  • 18-09-2020 01:07:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0800, 12.2320 at 36 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
Montiano FC 6 1716 1716
Cesena FC 6 96758 98474
Longiano FC 8 7126 105600
Roncofreddo FC 8 3386 108986
Gambettola FC 10 10660 119646
Sogliano al Rubicone FC 10 3195 122841
Bertinoro FC 11 11059 133900
Borghi FC 11 2843 136743
Gatteo FC 13 9068 145811
Savignano sul Rubicone FC 14 17766 163577
Mercato Saraceno FC 14 6886 170463
Meldola FC 15 9970 180433
Forlimpopoli FC 15 13290 193723
San Mauro Pascoli FC 15 11690 205413
Poggio Torriana RN 16 5135 210548
Santarcangelo di Romagna RN 17 22089 232637
Verucchio RN 19 10078 242715
Cesenatico FC 19 25796 268511
Sarsina FC 19 3446 271957
Bellaria-Igea Marina RN 20 19519 291476
Talamello RN 20 1104 292580

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km S of Cesena (96758 inhabitants)
22 Km SE of Forlì (117913 inhabitants)
27 Km W of Rimini (147750 inhabitants)
36 Km SE of Faenza (58541 inhabitants)
38 Km S of Ravenna (159116 inhabitants)
51 Km SE of Imola (69797 inhabitants)
58 Km W of Pesaro (94582 inhabitants)
68 Km W of Fano (60888 inhabitants)
74 Km NE of Arezzo (99543 inhabitants)
85 Km SE of Bologna (386663 inhabitants)
85 Km E of Firenze (382808 inhabitants)
91 Km E of Scandicci (50609 inhabitants)
93 Km E of Prato (191150 inhabitants)
97 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 1.3 2020-09-17
23:07:26		 44.0802 12.2322 36 2021-02-26
14:56:10		 Bollettino Sismico Italiano INGV 85341631
Reviewed
Rev100 		ML 1.3 2020-09-17
23:07:25		 44.0968 12.2355 41 2020-09-17
23:14:19		 Sala Sismica INGV-Roma 82993501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-17 23:07:26 ± 0.26
Latitude 44.0802 ± 0.0099
Longitude 12.2322 ± 0.0100
Depth (km) 36 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85341631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1098
Semi-minor axis of confidence ellipse (meter) 164
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.20864
Epicentral distance of station farthest from the epicenter (degree) 0.58906
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 85341631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-10 15:47:36

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 82993501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-17 23:14:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VISG.HHZ. 2020-09-17T23:07:49.04 0.6 undecidable manual S 281 64.6908 114 1.5 29
IV.MPAG.EHZ. 2020-09-17T23:07:48.02 0.6 undecidable manual S 140 65.3901 114 0.29 48
IV.NARO.HHZ. 2020-09-17T23:07:46.32 0.3 undecidable manual S 152 59.0964 117 0.13 75
IV.APEC.HNN. 2020-09-17T23:07:46.52 0.6 undecidable manual S 165 59.7957 116 0.16 49
IV.RINC.HHZ. 2020-09-17T23:07:45.22 0.3 undecidable manual S 247 54.3012 119 0.14 75
IV.CRE.HHE. 2020-09-17T23:07:45.86 0.6 undecidable manual S 204 55.8996 118 0.42 47
IV.PESA.HHE. 2020-09-17T23:07:45.09 0.6 undecidable manual S 107 50.9157 121 0.82 42
IV.PARC.HHZ. 2020-09-17T23:07:43.55 0.3 undecidable manual S 179 47.9187 122 -0.04 79
IV.PE3.EHZ. 2020-09-17T23:07:43.75 0.3 undecidable manual S 154 47.5191 123 0.23 75
IV.ASQU.HHZ. 2020-09-17T23:07:43.29 0.3 undecidable manual S 229 47.3193 123 -0.18 76
IV.BRIS.HHZ. 2020-09-17T23:07:41.73 0.6 undecidable manual S 294 40.3263 127 -0.22 51
IV.MPAG.EHZ. 2020-09-17T23:07:39.04 0.3 undecidable manual P 140 65.3901 114 0.32 71
IV.VISG.HHZ. 2020-09-17T23:07:39.21 0.3 undecidable manual P 281 64.6908 114 0.61 66
IV.CRTC.HNE. 2020-09-17T23:07:38.82 0.6 undecidable manual P 123 62.493 115 0.52 46
IV.RSM2.HHZ. 2020-09-17T23:07:38.22 0.6 undecidable manual S 133 23.1546 144 -0.5 49
IV.APEC.HNN. 2020-09-17T23:07:37.92 0.3 undecidable manual P 165 59.7957 116 0 77
IV.RINC.HHZ. 2020-09-17T23:07:37.13 0.3 undecidable manual P 247 54.3012 119 -0.05 77
IV.CRE.HHE. 2020-09-17T23:07:37.39 0.3 undecidable manual P 204 55.8996 118 0 77
IV.NARO.HHZ. 2020-09-17T23:07:37.52 0.3 undecidable manual P 152 59.0964 117 -0.3 72
IV.ASQU.HHZ. 2020-09-17T23:07:36.01 0.1 undecidable manual P 229 47.3193 123 -0.25 100
IV.PESA.HHE. 2020-09-17T23:07:36.86 0.3 undecidable manual P 107 50.9157 121 0.14 77
IV.PE3.EHZ. 2020-09-17T23:07:35.92 0.3 undecidable manual P 154 47.5191 123 -0.36 73
IV.BRIS.HHZ. 2020-09-17T23:07:35.09 0.1 undecidable manual P 294 40.3263 127 -0.28 100
IV.PARC.HHZ. 2020-09-17T23:07:35.78 0.1 undecidable manual P 179 47.9187 122 -0.54 93
IV.RSM2.HHZ. 2020-09-17T23:07:32.82 0.3 undecidable manual P 133 23.1546 144 -0.69 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:1.3 0.0000394 0.3 AML other m 2020-09-17T23:07:43.73
IV.ASQU.HHE. ML:1.2 0.00003229999999999999 0.22 AML other m 2020-09-17T23:07:44.04
IV.RINC.HHN. ML:1.3 0.0000401 0.42 AML other m 2020-09-17T23:07:45.66
IV.RINC.HHE. ML:1.6 0.00006870000000000002 0.26 AML other m 2020-09-17T23:07:45.40
IV.BRIS.HHE. ML:1.3 0.0000467 1.54 AML other m 2020-09-17T23:07:46.22
IV.BRIS.HHN. ML:1.2 0.0000373 1.22 AML other m 2020-09-17T23:07:47.35
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