Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 16-09-2020 and time 12:19:38 (UTC) in region 5 km E Monterenzio (BO)

A magnitude ML 1.6 earthquake occured in region: 5 km E Monterenzio (BO), on

  • 16-09-2020 12:19:38 (UTC)
  • 16-09-2020 14:19:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3240, 11.4630 at 23 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
Monterenzio BO 5 6035 6035
Fontanelice BO 11 1943 7978
Borgo Tossignano BO 11 3288 11266
Pianoro BO 12 17460 28726
Casalfiumanese BO 13 3438 32164
Loiano BO 13 4294 36458
Castel del Rio BO 13 1246 37704
Castel San Pietro Terme BO 13 20811 58515
Ozzano dell'Emilia BO 14 13596 72111
Dozza BO 14 6652 78763
Monzuno BO 16 6328 85091
Monghidoro BO 16 3749 88840
San Lazzaro di Savena BO 17 32065 120905
Casola Valsenio RA 17 2617 123522
Sasso Marconi BO 19 14735 138257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Imola (69797 inhabitants)
21 Km SE of Bologna (386663 inhabitants)
34 Km W of Faenza (58541 inhabitants)
47 Km W of Forlì (117913 inhabitants)
56 Km SE of Modena (184973 inhabitants)
57 Km NE of Prato (191150 inhabitants)
58 Km S of Ferrara (133155 inhabitants)
60 Km W of Ravenna (159116 inhabitants)
61 Km NE of Pistoia (90315 inhabitants)
64 Km N of Firenze (382808 inhabitants)
66 Km W of Cesena (96758 inhabitants)
67 Km NE of Scandicci (50609 inhabitants)
69 Km SE of Carpi (70699 inhabitants)
78 Km SE of Reggio nell'Emilia (171345 inhabitants)
87 Km SW of Rovigo (51867 inhabitants)
93 Km W of Rimini (147750 inhabitants)
93 Km NE of Lucca (89046 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 1.6 2020-09-16
12:19:38		 44.324 11.4628 23 2021-02-26
14:55:57		 Bollettino Sismico Italiano INGV 83408901
Reviewed
Rev100 		ML 1.6 2020-09-16
12:19:38		 44.315 11.4572 23 2020-09-16
12:30:45		 Sala Sismica INGV-Roma 82953951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-16 12:19:38 ± 0.22
Latitude 44.3240 ± 0.0090
Longitude 11.4628 ± 0.0088
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83408901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 958
Semi-minor axis of confidence ellipse (meter) 217
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 173
Circular confidence region, given by single value of horizontal uncertainty (meter) 960.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 1.04771
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 83408901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-01 08:05:35

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 82953951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-16 12:30:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASQU.HHZ. 2020-09-16T12:19:58.68 0.6 undecidable manual S 156 63.9915 103 0.47 47
IV.TEOL.HHE. 2020-09-16T12:19:58.09 1.0 undecidable manual P 8 116.2947 97 0.36 21
IV.MPPT.EHZ. 2020-09-16T12:19:55.11 0.3 undecidable manual S 216 50.3163 108 0.43 73
IV.RINC.HHZ. 2020-09-16T12:19:54.79 0.6 undecidable manual S 167 49.9167 108 0.22 51
IV.MOCL.EHZ. 2020-09-16T12:19:52.59 0.3 undecidable manual S 212 41.9247 112 0.03 80
IV.FNVD.HHE. 2020-09-16T12:19:50.62 0.6 undecidable manual S 237 32.0457 119 0.43 50
IV.LMD.HHZ. 2020-09-16T12:19:50.42 0.6 undecidable manual S 145 33.5442 118 -0.11 53
IV.ASQU.HHZ. 2020-09-16T12:19:50.13 0.6 undecidable manual P 156 63.9915 103 0.34 48
IV.BRIS.HHZ. 2020-09-16T12:19:49.46 0.6 undecidable manual S 114 26.5512 125 0.54 48
IV.SEI.HHZ. 2020-09-16T12:19:49.65 0.3 undecidable manual S 196 31.0467 120 -0.3 77
IV.MPPT.EHZ. 2020-09-16T12:19:47.87 0.3 undecidable manual P 216 50.3163 108 0.12 77
IV.RINC.HHZ. 2020-09-16T12:19:47.84 0.3 undecidable manual P 167 49.9167 108 0.16 77
IV.VISG.HHZ. 2020-09-16T12:19:46.14 0.3 undecidable manual S 189 15.1737 143 -0.57 74
IV.MOCL.EHZ. 2020-09-16T12:19:46.79 0.6 undecidable manual P 212 41.9247 112 0.26 51
IV.MTRZ.HHZ. 2020-09-16T12:19:45.74 0.6 undecidable manual S 248 3.2967 171 0.31 54
IV.LMD.HHZ. 2020-09-16T12:19:45.06 0.3 undecidable manual P 145 33.5442 118 -0.3 77
IV.SEI.HHZ. 2020-09-16T12:19:44.57 0.1 undecidable manual P 196 31.0467 120 -0.44 100
IV.FNVD.HHE. 2020-09-16T12:19:44.71 0.3 undecidable manual P 237 32.0457 119 -0.44 75
IV.BRIS.HHZ. 2020-09-16T12:19:44.43 0.3 undecidable manual P 114 26.5512 125 0 82
IV.MTRZ.HHZ. 2020-09-16T12:19:42.51 0.3 undecidable manual P 248 3.2967 171 0.1 84
IV.VISG.HHZ. 2020-09-16T12:19:42.67 0.3 undecidable manual P 189 15.1737 143 -0.47 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRZ.HNN. ML:1.8 0.000474 0.4 AML other m 2020-09-16T12:19:47.55
IV.MTRZ.HHN. ML:1.8 0.00041500000000000006 0.38 AML other m 2020-09-16T12:19:47.54
IV.BRIS.HHN. ML:1.7 0.00020950000000000002 1.06 AML other m 2020-09-16T12:19:49.37
IV.MTRZ.HNE. ML:1.7 0.0003605 0.32 AML other m 2020-09-16T12:19:50.73
IV.MTRZ.HHE. ML:1.7 0.000377 0.28 AML other m 2020-09-16T12:19:50.73
IV.LMD.HHN. ML:1.4 0.00009465 0.92 AML other m 2020-09-16T12:19:51.46
IV.SEI.HHE. ML:1.8 0.0002385 1.68 AML other m 2020-09-16T12:19:51.00
IV.LMD.HHE. ML:1.3 0.00007095 0.64 AML other m 2020-09-16T12:19:52.38
IV.BRIS.HHE. ML:1.6 0.000153 0.46 AML other m 2020-09-16T12:19:52.57
IV.SEI.HHN. ML:1.8 0.00026250000000000004 0.26 AML other m 2020-09-16T12:19:52.37
IV.RINC.HHE. ML:1.6 0.0000974 1.1 AML other m 2020-09-16T12:19:56.82
IV.RINC.HHN. ML:1.5 0.0000813 0.46 AML other m 2020-09-16T12:19:56.39
IV.ASQU.HHE. ML:1.6 0.00006765 0.4 AML other m 2020-09-16T12:20:00.24
IV.ASQU.HHN. ML:1.4 0.000048450000000000005 0.54 AML other m 2020-09-16T12:20:00.35
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