INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.9 on date 21-01-2019 and time 00:24:17 (Italy) in region 1 km NW Ravenna (RA)

A magnitude ML 1.9 earthquake occured in region: 1 km NW Ravenna (RA), on

  • 20-01-2019 23:24:17 (UTC)
  • 21-01-2019 00:24:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.42, 12.19 at 18 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Ravenna RA 1 159116 159116
Russi RA 14 12247 171363
Alfonsine RA 15 12038 183401
Bagnacavallo RA 17 16739 200140
Fusignano RA 19 8222 208362

Municipalities with at least 50000 inhabitants

An earthquake occurred to
1 Km NW of Ravenna (159116 inhabitants)
25 Km NE of Forlì (117913 inhabitants)
29 Km NE of Faenza (58541 inhabitants)
32 Km N of Cesena (96758 inhabitants)
39 Km E of Imola (69797 inhabitants)
50 Km NW of Rimini (147750 inhabitants)
65 Km SE of Ferrara (133155 inhabitants)
68 Km E of Bologna (386663 inhabitants)
79 Km SE of Rovigo (51867 inhabitants)
81 Km NW of Pesaro (94582 inhabitants)
92 Km NW of Fano (60888 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.9 2019-01-20
23:24:17
44.42 12.19 18 2019-01-20
23:34:26
Sala Sismica INGV-Roma 64829031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-20 23:24:17 ± 0.27
Latitude 44.42 ± 0.02
Longitude 12.19 ± 0.03
Depth (km) 18 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64829031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2737
Semi-minor axis of confidence ellipse (meter) 1853
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 221
Circular confidence region, given by single value of horizontal uncertainty (meter) 2740
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.56932
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 21
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 64829031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-20 23:34:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2019-01-20T23:26:16.46 3.0 undecidable manual Sg 15.18 0
IV.MONC.HHZ. 2019-01-20T23:26:02.97 3.0 undecidable manual Sg 13.21 0
IV.VARE.HHZ. 2019-01-20T23:25:52.20 3.0 undecidable manual Sg 8.44 0
IV.CAFE.HHZ. 2019-01-20T23:25:20.58 3.0 undecidable manual Pn 0.82 0
IV.PTRJ.HHZ. 2019-01-20T23:25:14.48 3.0 undecidable manual Pn 2.48 0
IV.FDMO.HHZ. 2019-01-20T23:25:06.03 3.0 undecidable manual S 0.61 0
OX.CGRP.HNE. 2019-01-20T23:25:03.99 1.0 undecidable manual S 350 1.4821 54 0.96 17
IV.APPI.EHZ. 2019-01-20T23:24:54.32 3.0 positive manual Pn -3.71 0
OX.VARN.HHE. 2019-01-20T23:24:49.17 3.0 undecidable manual P 1.5693 4.32 0
IV.MF5.EHZ. 2019-01-20T23:24:45.36 3.0 negative manual P -1.95 0
IV.FDMO.HHZ. 2019-01-20T23:24:43.80 3.0 negative manual P -1.03 0
OX.CGRP.HNE. 2019-01-20T23:24:43.19 1.0 undecidable manual P 350 1.4821 54 -0.46 21
IV.PII.HHZ. 2019-01-20T23:24:43.05 3.0 negative manual P -1.52 0
IV.EL6.EHZ. 2019-01-20T23:24:39.81 3.0 negative manual P -1.57 0
IV.OSSC.HHZ. 2019-01-20T23:24:39.52 1.0 negative manual P 217 1.1277 93 1.62 12
IV.CSNT.HHZ. 2019-01-20T23:24:39.86 3.0 negative manual P 1.1502 1.57 0
IV.MTCR.EHZ. 2019-01-20T23:24:38.06 3.0 positive manual P 0.9389 3.37 0
IV.ZOVE.HNN. 2019-01-20T23:24:38.66 1.0 undecidable manual P 334 1.1448 93 0.47 25
IV.CAFI.HHZ. 2019-01-20T23:24:37.99 0.3 positive manual P 189 1.1053 94 0.47 70
IV.ATVO.HHZ. 2019-01-20T23:24:37.14 0.6 positive manual P 171 1.0513 94 0.54 47
IV.SSFR.HHZ. 2019-01-20T23:24:36.55 0.1 negative manual P 157 1.0738 94 -0.43 95
IV.ARVD.HHZ. 2019-01-20T23:24:36.28 0.6 undecidable manual P 150 1.0702 94 -0.64 43
IV.MOCL.EHZ. 2019-01-20T23:24:36.11 0.6 positive manual P 240 0.8364 95 3.17 3
IV.ATPI.EHZ. 2019-01-20T23:24:35.76 0.6 positive manual P 171 0.983 94 0.32 51
IV.RUFI.EHZ. 2019-01-20T23:24:34.16 3.0 positive manual P 1.03 0
IV.MPAG.EHZ. 2019-01-20T23:24:33.86 0.3 negative manual P 153 0.8921 95 -0.02 80
IV.NARO.HHZ. 2019-01-20T23:24:33.42 0.3 undecidable manual P 161 0.858 95 0.12 82
IV.CRE.HHZ. 2019-01-20T23:24:32.40 0.6 undecidable manual P 192 0.822 95 -0.29 54
IV.PE3.EHZ. 2019-01-20T23:24:32.39 0.3 undecidable manual P 163 0.7581 95 0.78 70
IV.FRON.EHZ. 2019-01-20T23:24:32.88 1.0 negative manual P 157 0.9821 94 -2.54 5
IV.FIU.EHZ. 2019-01-20T23:24:31.76 0.6 positive manual P 294 0.545 98 3.78 3
IV.PESA.HHZ. 2019-01-20T23:24:30.22 1.0 negative manual P 136 0.6691 96 0.14 28
IV.BRIS.HHZ. 2019-01-20T23:24:29.83 0.6 undecidable manual S 237 0.3633 104 -0.78 55
IV.CPGN.EHZ. 2019-01-20T23:24:28.90 3.0 negative manual P 0.21 0
IV.SFI.EHZ. 2019-01-20T23:24:27.69 0.6 positive manual P 206 0.5738 98 -0.79 49
IV.LMD.HHZ. 2019-01-20T23:24:26.57 1.0 positive manual P 225 0.4901 99 -0.48 28
IV.IMOL.EHZ. 2019-01-20T23:24:25.14 1.0 negative manual P 259 0.3274 106 0.81 24
IV.BRSN.EHZ. 2019-01-20T23:24:25.65 0.3 undecidable manual S 210 0.1601 127 0.57 87
IV.BRIS.HHZ. 2019-01-20T23:24:24.46 0.6 negative manual P 237 0.3633 104 -0.47 57
IV.BRSN.EHZ. 2019-01-20T23:24:20.99 0.1 undecidable manual P 210 0.1601 127 -0.74 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRSN.EHE. ML:2.4 0.00174 0.2 AML other m 2019-01-20T23:24:25.86
IV.BRSN.EHN. ML:2.3 0.00119 0.22 AML other m 2019-01-20T23:24:25.86
IV.BRSN.HNN. ML:2.5 0.002 0.22 AML other m 2019-01-20T23:24:25.86
IV.BRSN.HNE. ML:2.1 0.0007775 1.64 AML other m 2019-01-20T23:24:25.16
IV.BRIS.HHN. ML:1.6 0.0001212 0.3 AML other m 2019-01-20T23:24:38.81
IV.SFI.EHE. ML:1.7 9.705E-5 0.46 AML other m 2019-01-20T23:24:39.29
IV.SFI.EHN. ML:1.9 0.000143 0.94 AML other m 2019-01-20T23:24:39.80
IV.LMD.HHE. ML:1.7 0.000113 0.32 AML other m 2019-01-20T23:24:40.79
IV.LMD.HHN. ML:1.7 0.000113 0.76 AML other m 2019-01-20T23:24:41.83
IV.PESA.HHN. ML:2.4 0.000384 0.62 AML other m 2019-01-20T23:24:42.73
IV.PESA.HHE. ML:2.4 0.000381 1.26 AML other m 2019-01-20T23:24:42.36
IV.BRIS.HHE. ML:1.6 0.0001395 1.58 AML other m 2019-01-20T23:24:43.20
IV.PE3.EHE. ML:2.4 0.000348 0.48 AML other m 2019-01-20T23:24:46.03
IV.PE3.EHN. ML:2.6 0.0004535 0.44 AML other m 2019-01-20T23:24:46.51
IV.NARO.HHN. ML:1.8 6.975E-5 0.42 AML other m 2019-01-20T23:24:47.83
IV.MPAG.EHE. ML:2.2 0.000147 0.42 AML other m 2019-01-20T23:24:48.35
IV.FRON.EHN. ML:1.9 6.95E-5 0.42 AML other m 2019-01-20T23:24:48.58
IV.MPAG.EHN. ML:2.1 0.00012 0.36 AML other m 2019-01-20T23:24:48.61
IV.NARO.HHE. ML:1.6 4.345E-5 0.42 AML other m 2019-01-20T23:24:49.10
IV.CRE.HHN. ML:1.8 7.56E-5 0.32 AML other m 2019-01-20T23:24:50.04
IV.CRE.HHE. ML:1.6 4.4E-5 0.64 AML other m 2019-01-20T23:24:50.51
IV.MOCL.EHN. ML:1.6 4.61E-5 0.42 AML other m 2019-01-20T23:24:52.32
IV.ATPI.EHN. ML:1.8 5.45E-5 0.34 AML other m 2019-01-20T23:24:52.32
IV.FRON.EHE. ML:1.7 4.565E-5 1.1 AML other m 2019-01-20T23:24:52.16
IV.ARVD.HHE. ML:1.7 4.02E-5 0.7 AML other m 2019-01-20T23:24:52.56
IV.MOCL.EHE. ML:1.6 3.755E-5 0.56 AML other m 2019-01-20T23:24:53.79
IV.ARVD.HHN. ML:1.7 3.825E-5 0.42 AML other m 2019-01-20T23:24:53.78
IV.SSFR.HHN. ML:2.3 0.000151 0.24 AML other m 2019-01-20T23:24:53.60
IV.SSFR.HHE. ML:2.5 0.000235 0.2 AML other m 2019-01-20T23:24:53.87
IV.SSFR.HNE. ML:2.6 0.000273 0.6 AML other m 2019-01-20T23:24:53.88
IV.ATPI.EHE. ML:1.7 4.285E-5 1.16 AML other m 2019-01-20T23:24:54.88
IV.ATVO.HHE. ML:1.9 5.33E-5 0.48 AML other m 2019-01-20T23:24:54.69
IV.SSFR.HNN. ML:2.6 0.000301 1.18 AML other m 2019-01-20T23:24:55.21
IV.MTCR.EHN. ML:1.7 4.525E-5 0.42 AML other m 2019-01-20T23:24:55.33
IV.CAFI.HHE. ML:1.8 4.17E-5 1.16 AML other m 2019-01-20T23:24:56.66
IV.MTCR.EHE. ML:1.7 4.65E-5 0.42 AML other m 2019-01-20T23:24:56.72
IV.CAFI.HHN. ML:1.6 2.905E-5 0.62 AML other m 2019-01-20T23:25:00.04
IV.ATVO.HHN. ML:1.7 4.13E-5 0.44 AML other m 2019-01-20T23:25:00.62
IV.FDMO.HHN. ML:3.7 0.002115 0.18 AML other m 2019-01-20T23:25:21.17
IV.FDMO.HHE. ML:3.3 0.000853 0.14 AML other m 2019-01-20T23:25:21.70
IV.MF5.EHN. ML:2.6 0.00012115 1.26 AML other m 2019-01-20T23:25:29.11
IV.MF5.EHE. ML:2.6 0.000142838 1.48 AML other m 2019-01-20T23:25:30.03
IV.APPI.EHN. ML:2.3 3.89E-5 0.34 AML other m 2019-01-20T23:25:34.01
IV.APPI.EHE. ML:2.2 3.445E-5 0.36 AML other m 2019-01-20T23:25:34.41
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