Earthquake with magnitude of ML 1.1 on date 18-10-2019 and time 03:45:04 (Italy) in region 3 km NW Meldola (FC)

A magnitude ML 1.1 earthquake occured in region: 3 km NW Meldola (FC), on

  • 18-10-2019 01:45:04 (UTC)
  • 18-10-2019 03:45:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.14, 12.03 at 9 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
Meldola FC 3 9970 9970
Predappio FC 6 6346 16316
Castrocaro Terme e Terra del Sole FC 8 6426 22742
Bertinoro FC 8 11059 33801
Forlimpopoli FC 9 13290 47091
Forlì FC 9 117913 165004
Dovadola FC 12 1653 166657
Civitella di Romagna FC 17 3786 170443
Cesena FC 17 96758 267201
Rocca San Casciano FC 18 1910 269111
Galeata FC 19 2516 271627
Modigliana FC 19 4560 276187

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Forlì (117913 inhabitants)
17 Km W of Cesena (96758 inhabitants)
20 Km SE of Faenza (58541 inhabitants)
34 Km SW of Ravenna (159116 inhabitants)
35 Km SE of Imola (69797 inhabitants)
43 Km W of Rimini (147750 inhabitants)
68 Km SE of Bologna (386663 inhabitants)
75 Km NE of Firenze (382808 inhabitants)
75 Km W of Pesaro (94582 inhabitants)
76 Km N of Arezzo (99543 inhabitants)
80 Km E of Prato (191150 inhabitants)
80 Km NE of Scandicci (50609 inhabitants)
84 Km SE of Ferrara (133155 inhabitants)
85 Km W of Fano (60888 inhabitants)
92 Km E of Pistoia (90315 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 1.1 2019-10-18
01:45:04
44.14 12.03 9 2019-10-18
02:01:19
Sala Sismica INGV-Roma 73316501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-18 01:45:04 ± 0.25
Latitude 44.14 ± 0.02
Longitude 12.03 ± 0.03
Depth (km) 9 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73316501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2259
Semi-minor axis of confidence ellipse (meter) 1398
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 318
Circular confidence region, given by single value of horizontal uncertainty (meter) 2260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0.14839
Epicentral distance of station farthest from the epicenter (degree) 0.51171
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 73316501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-18 02:01:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PARC.HHZ. 2019-10-18T01:45:23.67 0.3 undecidable manual S 163 0.5117 50 0.6 65
IV.ASQU.HHZ. 2019-10-18T01:45:20.06 0.6 undecidable manual S 207 0.3849 50 0.75 42
IV.SFI.EHZ. 2019-10-18T01:45:16.52 0.6 undecidable manual S 210 0.2707 106 0.7 44
IV.LMD.HHZ. 2019-10-18T01:45:15.11 0.6 undecidable manual S 255 0.2428 108 0.31 50
IV.PARC.HHZ. 2019-10-18T01:45:14.80 0.1 undecidable manual P 163 0.5117 50 -0.61 86
IV.BRIS.HHZ. 2019-10-18T01:45:14.19 0.6 undecidable manual S 294 0.2095 111 0.58 46
IV.BRSN.EHZ. 2019-10-18T01:45:12.52 0.3 undecidable manual S 13 0.1484 118 1.08 57
IV.ASQU.HHZ. 2019-10-18T01:45:12.92 1.0 positive manual P 207 0.3849 50 -0.32 24
IV.LMD.HHZ. 2019-10-18T01:45:10.01 0.1 undecidable manual P 255 0.2428 108 -0.63 91
IV.SFI.EHZ. 2019-10-18T01:45:10.88 0.6 negative manual P 210 0.2707 106 -0.34 49
IV.BRIS.HHZ. 2019-10-18T01:45:09.60 0.1 undecidable manual P 294 0.2095 111 -0.35 99
IV.BRSN.EHZ. 2019-10-18T01:45:08.34 0.1 negative manual P 13 0.1484 118 -0.36 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRSN.EHE. ML:1.1 0.000102844645 0.36 AML other m 2019-10-18T01:45:12.23
IV.BRSN.EHN. ML:1.3 0.000180662665 0.28 AML other m 2019-10-18T01:45:12.73
IV.BRSN.HNE. ML:1.2 0.0001456575 0.4 AML other m 2019-10-18T01:45:12.79
IV.BRSN.HNN. ML:1.4 0.0002089853 0.7392 AML other m 2019-10-18T01:45:21.23
IV.BRIS.HHE. ML:0.6 2.619087E-5 0.24 AML other m 2019-10-18T01:45:18.17
IV.BRIS.HHN. ML:0.7 2.7612145E-5 0.32 AML other m 2019-10-18T01:45:17.96
IV.BRIS.HNE. ML:1.1 8.75318E-5 0.56 AML other m 2019-10-18T01:45:23.78
IV.BRIS.HNN. ML:1.5 0.00019988645 0.5992 AML other m 2019-10-18T01:45:14.14
IV.LMD.HHE. ML:1 5.4920255E-5 0.22 AML other m 2019-10-18T01:45:15.79
IV.LMD.HHN. ML:1 5.346463E-5 0.16 AML other m 2019-10-18T01:45:16.46
IV.SFI.EHE. ML:0.7 2.431064E-5 0.24 AML other m 2019-10-18T01:45:17.64
IV.SFI.EHN. ML:0.9 3.277921E-5 0.16 AML other m 2019-10-18T01:45:17.38
IV.SFI.HNE. ML:1.3 0.00010113337 0.6 AML other m 2019-10-18T01:45:18.14
IV.SFI.HNN. ML:1.4 0.000114173995 0.74 AML other m 2019-10-18T01:45:14.23
IV.ASQU.HHE. ML:0.8 1.979352E-5 0.22 AML other m 2019-10-18T01:45:21.31
IV.ASQU.HHN. ML:0.9 2.3149525E-5 0.42 AML other m 2019-10-18T01:45:20.97
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