Earthquake with magnitude of ML 1.4 on date 26-04-2019 and time 06:32:09 (Italy) in region 4 km SE Casola Valsenio (RA)

A magnitude ML 1.4 earthquake occured in region: 4 km SE Casola Valsenio (RA), on

  • 26-04-2019 04:32:09 (UTC)
  • 26-04-2019 06:32:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2, 11.67 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Casola Valsenio RA 4 2617 2617
Brisighella RA 9 7639 10256
Riolo Terme RA 10 5720 15976
Borgo Tossignano BO 11 3288 19264
Fontanelice BO 11 1943 21207
Modigliana FC 11 4560 25767
Casalfiumanese BO 12 3438 29205
Castel del Rio BO 13 1246 30451
Palazzuolo sul Senio FI 14 1154 31605
Marradi FI 14 3139 34744
Tredozio FC 15 1212 35956
Castel Bolognese RA 17 9554 45510
Imola BO 18 69797 115307
Dozza BO 18 6652 121959
Dovadola FC 20 1653 123612
Faenza RA 20 58541 182153

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km S of Imola (69797 inhabitants)
20 Km W of Faenza (58541 inhabitants)
30 Km W of Forlì (117913 inhabitants)
42 Km SE of Bologna (386663 inhabitants)
47 Km W of Cesena (96758 inhabitants)
49 Km W of Ravenna (159116 inhabitants)
58 Km NE of Prato (191150 inhabitants)
58 Km NE of Firenze (382808 inhabitants)
63 Km NE of Scandicci (50609 inhabitants)
67 Km E of Pistoia (90315 inhabitants)
71 Km S of Ferrara (133155 inhabitants)
74 Km W of Rimini (147750 inhabitants)
77 Km SE of Modena (184973 inhabitants)
83 Km N of Arezzo (99543 inhabitants)
90 Km SE of Carpi (70699 inhabitants)
97 Km S of Rovigo (51867 inhabitants)
99 Km SE of Reggio nell'Emilia (171345 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
Rev 1000 ML 1.4 2019-04-26
04:32:09
44.2 11.67 23 2019-08-22
08:24:59
Bollettino Sismico Italiano INGV 68568761
Rev 100 ML 1.7 2019-04-26
04:32:11
44.18 11.64 11 2019-04-26
04:38:19
Sala Sismica INGV-Roma 67964341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-26 04:32:09 ± 0.16
Latitude 44.20 ± 0.01
Longitude 11.67 ± 0.01
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68568761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 687
Semi-minor axis of confidence ellipse (meter) 138
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 222
Circular confidence region, given by single value of horizontal uncertainty (meter) 690
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.78241
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 67964341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-26 04:38:19

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 68568761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-15 07:41:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IMI.HHZ. 2019-04-26T04:33:32.06 3.0 undecidable manual Sn 3.8 0
IV.EUCT.HNZ. 2019-04-26T04:33:20.62 3.0 undecidable manual Sg 8.5 0
IV.MTMR.EHZ. 2019-04-26T04:33:17.29 3.0 undecidable manual Pn 3.96 0
IV.ARRO.EHZ. 2019-04-26T04:33:08.02 3.0 undecidable manual Sg 1.51 0
IV.MILN.HNZ. 2019-04-26T04:32:44.84 3.0 undecidable manual Pn -1.32 0
GU.CARD.HHZ. 2019-04-26T04:32:40.26 3.0 undecidable manual S -0.34 0
IV.OSSC.HHZ. 2019-04-26T04:32:35.15 0.1 undecidable manual S 204 0.741 100 0.53 81
IV.CRE.HHZ. 2019-04-26T04:32:31.14 0.3 undecidable manual S 160 0.6169 102 0.14 67
IV.MTCR.EHZ. 2019-04-26T04:32:28.39 0.1 undecidable manual S 250 0.5063 105 0.58 84
IV.ASQU.HHZ. 2019-04-26T04:32:25.43 0.1 undecidable manual S 168 0.4137 109 0.25 91
IV.RUFI.EHZ. 2019-04-26T04:32:24.13 0.1 undecidable manual S 197 0.3795 111 -0.1 95
IV.OSSC.HHZ. 2019-04-26T04:32:24.76 0.1 undecidable manual P 204 0.741 100 0.57 80
IV.MOCL.EHZ. 2019-04-26T04:32:24.84 0.1 undecidable manual S 241 0.3993 110 0.06 96
IV.PE3.EHZ. 2019-04-26T04:32:24.99 0.3 undecidable manual P 130 0.7824 99 0.11 66
IV.FNVD.HHZ. 2019-04-26T04:32:24.53 0.3 undecidable manual S 265 0.3903 110 0 72
IV.CRE.HHZ. 2019-04-26T04:32:22.00 0.1 undecidable manual P 160 0.6169 102 -0.1 91
IV.BRSN.HNE. 2019-04-26T04:32:22.76 0.3 undecidable manual S 74 0.3085 116 0.47 67
IV.SFI.EHZ. 2019-04-26T04:32:22.89 0.1 undecidable manual S 156 0.3238 115 0.2 94
IT.FIE.HGZ. 2019-04-26T04:32:21.07 3.0 negative manual P 1.08 0
IV.SEI.HHZ. 2019-04-26T04:32:21.20 0.1 undecidable manual S 236 0.2644 121 0.05 99
IV.MTCR.EHZ. 2019-04-26T04:32:20.14 0.1 undecidable manual P 250 0.5063 105 -0.11 92
IV.ZCCA.HNN. 2019-04-26T04:32:20.68 0.3 undecidable manual P 287 0.5153 105 0.28 68
IV.ASQU.HHZ. 2019-04-26T04:32:18.35 0.1 undecidable manual P 168 0.4137 109 -0.39 89
IV.MOCL.EHZ. 2019-04-26T04:32:18.52 0.1 negative manual P 241 0.3993 110 0.01 96
IV.FNVD.HHZ. 2019-04-26T04:32:17.82 0.3 undecidable manual P 265 0.3903 110 -0.54 63
IV.BRIS.HHZ. 2019-04-26T04:32:17.62 0.1 undecidable manual S 72 0.0764 157 0.27 96
IV.RUFI.EHZ. 2019-04-26T04:32:17.89 0.1 undecidable manual P 197 0.3795 111 -0.3 91
IV.LMD.HHZ. 2019-04-26T04:32:17.56 0.1 undecidable manual S 166 0.1268 144 -0.54 92
IV.BRSN.HNE. 2019-04-26T04:32:17.71 0.3 undecidable manual P 74 0.3085 116 0.64 63
IV.SFI.EHZ. 2019-04-26T04:32:16.86 0.1 positive manual P 156 0.3238 115 -0.44 90
IV.SEI.HHZ. 2019-04-26T04:32:16.07 0.1 undecidable manual P 236 0.2644 121 -0.34 92
IV.IMOL.EHZ. 2019-04-26T04:32:15.05 0.1 undecidable manual P 19 0.1682 135 -0.05 100
IV.FAEN.HNZ. 2019-04-26T04:32:15.60 0.3 undecidable manual P 60 0.1754 134 0.41 70
IV.FAZ.HGZ. 2019-04-26T04:32:15.66 3.0 undecidable manual S 0
IV.LMD.HHZ. 2019-04-26T04:32:14.04 0.1 positive manual P 166 0.1268 144 -0.61 89
IV.BRIS.HHZ. 2019-04-26T04:32:13.88 0.1 positive manual P 72 0.0764 157 -0.34 96
IV.FAZ.HGZ. 2019-04-26T04:32:12.12 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRIS.HHN. ML:2.2 0.0011561401 0.2208 AML other m 2019-04-26T04:32:17.92
IV.BRIS.HNN. ML:2.2 0.0010763215 0.4224 AML other m 2019-04-26T04:32:17.94
IV.BRIS.HNE. ML:2.2 0.0010163403 0.16 AML other m 2019-04-26T04:32:17.83
IV.BRIS.HHE. ML:2.1 0.00089866245 0.16 AML other m 2019-04-26T04:32:17.83
IV.LMD.HHE. ML:1.7 0.0002917595 0.16 AML other m 2019-04-26T04:32:17.78
IV.IMOL.HNE. ML:1.9 0.00040188205 0.1312 AML other m 2019-04-26T04:32:21.32
IV.IMOL.HNN. ML:1.8 0.00035905815 0.1696 AML other m 2019-04-26T04:32:21.44
IV.SEI.HHE. ML:1.8 0.00026061125 0.2816 AML other m 2019-04-26T04:32:21.32
IV.SEI.HHN. ML:2 0.00036091485 0.4192 AML other m 2019-04-26T04:32:21.47
IV.SFI.EHN. ML:1.3 7.054291E-5 0.2208 AML other m 2019-04-26T04:32:24.17
IV.RUFI.EHN. ML:1.4 7.344818E-5 0.3008 AML other m 2019-04-26T04:32:26.40
IV.ASQU.HHE. ML:1.3 5.2509985E-5 0.4 AML other m 2019-04-26T04:32:26.93
IV.ASQU.HHN. ML:1.5 7.3484615E-5 0.32 AML other m 2019-04-26T04:32:26.78
IV.MOCL.EHN. ML:1.3 5.5575035E-5 0.2592 AML other m 2019-04-26T04:32:26.15
IV.MOCL.EHE. ML:1.3 5.3297305E-5 0.1984 AML other m 2019-04-26T04:32:26.64
IV.CRE.HHN. ML:1.4 4.2087235E-5 0.3776 AML other m 2019-04-26T04:32:33.20
IV.CRE.HHE. ML:1.3 2.9397925E-5 0.3392 AML other m 2019-04-26T04:32:33.85
IV.OSSC.HNN. ML:2 0.00013073305 0.6816 AML other m 2019-04-26T04:32:36.00
IV.OSSC.HHE. ML:1.5 3.920369E-5 0.5984 AML other m 2019-04-26T04:32:35.37
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download