Earthquake with magnitude of ML 1.2 on date 30-10-2019 and time 11:49:43 (Italy) in region 2 km E Portico e San Benedetto (FC)

A magnitude ML 1.2 earthquake occured in region: 2 km E Portico e San Benedetto (FC), on

  • 30-10-2019 10:49:43 (UTC)
  • 30-10-2019 11:49:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.03, 11.8 at 31 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
Portico e San Benedetto FC 2 756 756
Rocca San Casciano FC 5 1910 2666
Premilcuore FC 6 799 3465
Tredozio FC 7 1212 4677
Galeata FC 10 2516 7193
Civitella di Romagna FC 11 3786 10979
Dovadola FC 12 1653 12632
Santa Sofia FC 13 4136 16768
Modigliana FC 14 4560 21328
Marradi FI 16 3139 24467
Predappio FC 16 6346 30813
San Godenzo FI 19 1167 31980

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Forlì (117913 inhabitants)
29 Km S of Faenza (58541 inhabitants)
37 Km S of Imola (69797 inhabitants)
37 Km W of Cesena (96758 inhabitants)
53 Km NE of Firenze (382808 inhabitants)
53 Km SW of Ravenna (159116 inhabitants)
58 Km NE of Scandicci (50609 inhabitants)
59 Km E of Prato (191150 inhabitants)
61 Km W of Rimini (147750 inhabitants)
63 Km N of Arezzo (99543 inhabitants)
63 Km SE of Bologna (386663 inhabitants)
72 Km E of Pistoia (90315 inhabitants)
88 Km NE of Siena (53903 inhabitants)
90 Km W of Pesaro (94582 inhabitants)
91 Km S of Ferrara (133155 inhabitants)
98 Km SE of Modena (184973 inhabitants)
100 Km W 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 1.2 2019-10-30
10:49:43
44.03 11.8 31 2019-10-30
11:05:41
Sala Sismica INGV-Roma 73532181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-30 10:49:43 ± 0.31
Latitude 44.03 ± 0.01
Longitude 11.80 ± 0.02
Depth (km) 31 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73532181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1158
Semi-minor axis of confidence ellipse (meter) 362
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 1160
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31926
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 73532181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-30 11:05:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.BLANC.HHZ. 2019-10-30T10:51:35.02 3.0 undecidable manual Sn -0.1 0
IV.DGI.HHZ. 2019-10-30T10:51:21.60 3.0 undecidable manual Sn -1.81 0
IV.SACR.HHZ. 2019-10-30T10:51:10.07 3.0 undecidable manual Sg 8.72 0
IV.CADC.HNZ. 2019-10-30T10:50:49.22 3.0 undecidable manual Sg 3.16 0
IT.ACQ.HGZ. 2019-10-30T10:50:33.10 3.0 undecidable manual Pg 10.31 0
IV.MTMR.HNZ. 2019-10-30T10:50:32.04 3.0 undecidable manual Pn 1 0
IV.AGLI.HHZ. 2019-10-30T10:50:29.63 3.0 undecidable manual Pn -0.12 0
IV.TRTR.HHZ. 2019-10-30T10:50:29.61 3.0 undecidable manual S 2.5 0
IV.PTRJ.HNZ. 2019-10-30T10:50:29.57 3.0 undecidable manual Pg 6.37 0
IV.CPOZ.HHZ. 2019-10-30T10:50:25.79 3.0 positive manual Pn -1.54 0
GU.RNCA.HHZ. 2019-10-30T10:50:18.16 3.0 undecidable manual Pn 0.85 0
IV.RMP.HHZ. 2019-10-30T10:50:11.60 3.0 negative manual Pg 2.08 0
IV.MCIV.CHZ. 2019-10-30T10:50:08.49 3.0 undecidable manual S -2.63 0
IV.SENI.HNZ. 2019-10-30T10:50:02.42 3.0 undecidable manual S -3.22 0
IV.SEI.HHZ. 2019-10-30T10:49:57.01 0.3 undecidable manual S 274 0.3193 126 0.18 70
IV.ASQU.HHZ. 2019-10-30T10:49:55.16 0.1 undecidable manual S 182 0.2356 136 0.21 95
IV.BRIS.HHZ. 2019-10-30T10:49:54.59 0.3 undecidable manual S 352 0.1943 142 0.45 68
IV.SFI.EHZ. 2019-10-30T10:49:53.17 0.1 undecidable manual S 166 0.1313 152 0.05 100
IV.LMD.HHZ. 2019-10-30T10:49:52.16 0.1 undecidable manual S 304 0.0818 162 -0.39 94
IV.SEI.HHZ. 2019-10-30T10:49:51.13 0.3 undecidable manual P 274 0.3193 126 0.1 71
IV.ASQU.HHZ. 2019-10-30T10:49:50.09 0.1 undecidable manual P 182 0.2356 136 0.15 96
IV.RUFI.EHZ. 2019-10-30T10:49:50.26 0.3 undecidable manual P 227 0.286 130 -0.32 69
IV.BRIS.HHZ. 2019-10-30T10:49:49.52 0.1 undecidable manual P 352 0.1943 142 0.05 99
IV.LMD.HHZ. 2019-10-30T10:49:48.22 0.1 undecidable manual P 304 0.0818 162 -0.33 95
IV.SFI.EHZ. 2019-10-30T10:49:48.81 0.1 undecidable manual P 166 0.1313 152 -0.07 99
IV.COR1.EHZ. 2019-10-30T10:49:47.01 3.0 negative manual P -2.51 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRE.HHE. ML:1.2 3.56E-5 0.3 AML other m 2019-10-30T10:49:38.91
IV.CRE.HHN. ML:1.3 4.29E-5 0.44 AML other m 2019-10-30T10:49:39.20
IV.LMD.HHE. ML:1.3 0.00010655 0.16 AML other m 2019-10-30T10:49:52.52
IV.LMD.HHN. ML:1.3 0.0001006 0.74 AML other m 2019-10-30T10:49:53.46
IV.ASQU.HHN. ML:1.2 6.205E-5 0.32 AML other m 2019-10-30T10:49:55.50
IV.ASQU.HHE. ML:1.4 8.945E-5 0.24 AML other m 2019-10-30T10:49:55.62
IV.SFI.EHE. ML:1 4.8991385E-5 0.1792 AML other m 2019-10-30T10:49:53.77
IV.SFI.EHN. ML:0.9 3.4905435E-5 2.0224 AML other m 2019-10-30T10:49:53.51
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