Earthquake with magnitude of ML 1.9 on date 03-04-2023 and time 04:06:49 (Italy) in region 3 km SW Ozzano dell'Emilia (BO)

A magnitude ML 1.9 earthquake occured in region: 3 km SW Ozzano dell'Emilia (BO), on

  • 03-04-2023 02:06:49 (UTC)
  • 03-04-2023 04:06:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4230, 11.4600 at 24 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ozzano dell'Emilia BO 3 13596 13596
San Lazzaro di Savena BO 7 32065 45661
Castenaso BO 10 14925 60586
Pianoro BO 10 17460 78046
Castel San Pietro Terme BO 11 20811 98857
Monterenzio BO 12 6035 104892
Bologna BO 12 386663 491555
Budrio BO 14 18412 509967
Granarolo dell'Emilia BO 15 11910 521877
Dozza BO 15 6652 528529
Casalecchio di Reno BO 16 36327 564856
Medicina BO 16 16739 581595
Sasso Marconi BO 17 14735 596330
Castel Guelfo di Bologna BO 18 4455 600785
Casalfiumanese BO 19 3438 604223
Castel Maggiore BO 19 18231 622454
Borgo Tossignano BO 19 3288 625742
Fontanelice BO 20 1943 627685

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SE of Bologna (386663 inhabitants)
22 Km W of Imola (69797 inhabitants)
37 Km W of Faenza (58541 inhabitants)
48 Km S of Ferrara (133155 inhabitants)
49 Km SE of Modena (184973 inhabitants)
51 Km W of Forlì (117913 inhabitants)
59 Km W of Ravenna (159116 inhabitants)
61 Km SE of Carpi (70699 inhabitants)
67 Km NE of Prato (191150 inhabitants)
69 Km NE of Pistoia (90315 inhabitants)
70 Km W of Cesena (96758 inhabitants)
73 Km E of Reggio nell'Emilia (171345 inhabitants)
74 Km N of Firenze (382808 inhabitants)
77 Km SW of Rovigo (51867 inhabitants)
77 Km NE of Scandicci (50609 inhabitants)
97 Km W of Rimini (147750 inhabitants)
99 Km E of Parma (192836 inhabitants)
100 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 1.9 2023-04-03
02:06:49
44.4227 11.46 24 2024-03-01
17:18:07
Bollettino Sismico Italiano INGV 117180621
Reviewed
Rev100
ML 1.4 2023-04-03
02:06:50
44.4107 11.4028 26 2023-04-03
02:20:46
Sala Sismica INGV-Roma 115988651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-03 02:06:49 ± 0.17
Latitude 44.4227 ± 0.0072
Longitude 11.4600 ± 0.0277
Depth (km) 24 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117180621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2140
Semi-minor axis of confidence ellipse (meter) 345
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 2140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.47309
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 30
Type of magnitude ML
Reference to an origin 117180621
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-08 16:31:32

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 115988651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-03 02:20:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOCO.HHZ. 2023-04-03T02:08:50.53 3.0 undecidable manual Sg 4.35 0
IV.AIO.HHZ. 2023-04-03T02:08:47.56 3.0 undecidable manual Pg 11.4 0
IV.MTMR.HNZ. 2023-04-03T02:08:43.03 3.0 undecidable manual Sn -9.99 0
IV.POFI.HHZ. 2023-04-03T02:08:28.51 3.0 undecidable manual Sg 4.5 0
IV.IFOR.HHZ. 2023-04-03T02:08:03.90 3.0 undecidable manual Pg 8.07 0
IV.CDRU.HHZ. 2023-04-03T02:08:02.68 3.0 undecidable manual Pn -3.24 0
IV.CMPR.HHZ. 2023-04-03T02:07:59.85 3.0 negative manual Pn -8.03 0
OX.SABO.HHZ. 2023-04-03T02:07:54.90 3.0 undecidable manual Sn -0.63 0
IV.MOCO.HHZ. 2023-04-03T02:07:46.44 3.0 undecidable manual Pn -8.88 0
IV.MAGA.HHZ. 2023-04-03T02:07:16.43 0.3 undecidable manual P 337 163.5141 54 0.79 46
IV.TREG.EHZ. 2023-04-03T02:07:10.31 0.3 undecidable manual P 349 124.2867 97 -0.22 61
IV.ZOVE.EHZ. 2023-04-03T02:07:08.94 0.1 undecidable manual P 1 114.3966 97 -0.07 86
IV.LMD.HHZ. 2023-04-03T02:07:05.52 0.6 undecidable manual S 153 43.0236 112 1.04 37
IV.SEI.HHZ. 2023-04-03T02:07:03.81 0.6 undecidable manual S 191 41.625 113 -0.33 47
IV.SFI.EHN. 2023-04-03T02:07:01.98 0.3 undecidable manual P 152 65.1903 104 0.43 67
IV.VISG.HHZ. 2023-04-03T02:07:00.24 0.3 undecidable manual S 185 26.0517 127 -0.26 74
IV.FIU.EHZ. 2023-04-03T02:06:59.88 0.6 undecidable manual S 6 24.2535 129 -0.25 49
IV.VMGN.HHN. 2023-04-03T02:06:59.47 0.3 undecidable manual P 174 52.3032 108 -0.16 72
IV.BOSL.HHE. 2023-04-03T02:06:59.71 0.3 undecidable manual P 187 55.0005 107 -0.32 69
IV.ZCCA.HHN. 2023-04-03T02:06:58.15 0.3 undecidable manual P 258 39.1275 115 0.41 70
IV.MTRZ.HHZ. 2023-04-03T02:06:58.61 0.6 undecidable manual S 193 12.4764 149 0.56 47
IV.LMD.HHZ. 2023-04-03T02:06:58.21 0.3 undecidable manual P 153 43.0236 112 -0.08 74
IV.SEI.HHZ. 2023-04-03T02:06:57.41 0.3 undecidable manual P 191 41.625 113 -0.69 63
IV.BRIS.HHZ. 2023-04-03T02:06:56.88 0.3 undecidable manual P 132 32.745 120 0.01 77
IV.VISG.HHZ. 2023-04-03T02:06:55.50 0.3 undecidable manual P 185 26.0517 127 -0.49 70
IV.FIU.EHZ. 2023-04-03T02:06:55.63 0.1 undecidable manual P 6 24.2535 129 -0.15 100
IV.MTRZ.HHZ. 2023-04-03T02:06:54.98 0.1 undecidable manual P 193 12.4764 149 0.4 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHN. ML:1.1 0.00005537221499999999 0.1392 AML other m 2023-04-03T02:07:00.93
IV.MTRZ.HNE. ML:1.9 0.000426 0.86 AML other m 2023-04-03T02:07:00.89
IV.VISG.HHE. ML:1.1 0.000048549999999999994 0.26 AML other m 2023-04-03T02:07:01.30
IV.MTRZ.HHN. ML:1.8 0.00037072244999999997 1.5408 AML other m 2023-04-03T02:07:01.90
IV.MTRZ.HNN. ML:1.8 0.00039445005 1.5312 AML other m 2023-04-03T02:07:01.91
IV.MTRZ.HHE. ML:1.7 0.00029975555 0.52 AML other m 2023-04-03T02:07:02.41
IV.BRIS.HNN. ML:1.7 0.0001747396 0.8496 AML other m 2023-04-03T02:07:02.56
IV.SEI.HHN. ML:1.6 0.00011925 0.28 AML other m 2023-04-03T02:07:04.84
IV.SEI.HHE. ML:1.0 0.00002875 1.18 AML other m 2023-04-03T02:07:05.64
IV.BRIS.HHE. ML:0.6 0.000016570374999999998 0.16 AML other m 2023-04-03T02:07:05.85
IV.LMD.HHE. ML:1.0 0.000030479935 0.28 AML other m 2023-04-03T02:07:06.16
IV.LMD.HHN. ML:1.0 0.000028853554999999998 0.2 AML other m 2023-04-03T02:07:06.29
ST.VARA.EHN. ML:2.1 0.000052268305 0.6208 AML other m 2023-04-03T02:07:12.25
IV.BRIS.HNE. ML:1.6 0.00014347975 0.6992 AML other m 2023-04-03T02:07:12.75
ST.VARA.EHE. ML:2.4 0.00009880005 0.4384 AML other m 2023-04-03T02:07:13.95
ST.VARA.HNE. ML:2.4 0.000098175205 1.7392 AML other m 2023-04-03T02:07:14.00
IV.BRIS.HHN. ML:0.6 0.00001530745 0.1584 AML other m 2023-04-03T02:07:14.81
ST.VARA.HNN. ML:2.3 0.000095602353 0.5216 AML other m 2023-04-03T02:07:17.21
IV.ZOVE.EHE. ML:1.8 0.0000530771785 0.8192 AML other m 2023-04-03T02:07:23.76
IV.ZOVE.EHN. ML:1.8 0.000049846365 1.7808 AML other m 2023-04-03T02:07:26.98
IV.TREG.EHE. ML:2.1 0.00008774999999999999 1.72 AML other m 2023-04-03T02:07:29.95
IV.TREG.EHN. ML:2.0 0.0000669 0.94 AML other m 2023-04-03T02:07:29.73
IV.MAGA.HNN. ML:2.1 0.000048320895 0.9504 AML other m 2023-04-03T02:07:30.86
IV.ZOVE.HNE. ML:3.0 0.0007762752 1.1408 AML other m 2023-04-03T02:07:32.84
IV.ZOVE.HNN. ML:3.0 0.0008343996499999999 0.5616 AML other m 2023-04-03T02:07:35.55
IV.TREG.HNE. ML:2.3 0.0001351015 0.9392 AML other m 2023-04-03T02:07:36.79
IV.MAGA.HHE. ML:2.2 0.00006455 0.68 AML other m 2023-04-03T02:07:42.02
IV.MAGA.HHN. ML:1.8 0.00003025 1.28 AML other m 2023-04-03T02:07:44.25
IV.TREG.HNN. ML:2.5 0.0001927624 1.0688 AML other m 2023-04-03T02:07:52.20
IV.MAGA.HNE. ML:2.5 0.00014876915 0.0896 AML other m 2023-04-03T02:07:53.60
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