Earthquake with magnitude of ML 1.3 on date 11-05-2019 and time 06:00:44 (Italy) in region 4 km W Portico e San Benedetto (FC)

A magnitude ML 1.3 earthquake occured in region: 4 km W Portico e San Benedetto (FC), on

  • 11-05-2019 04:00:44 (UTC)
  • 11-05-2019 06:00:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.03, 11.74 at 7 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 4 756 756
Tredozio FC 5 1212 1968
Premilcuore FC 7 799 2767
Rocca San Casciano FC 9 1910 4677
Marradi FI 11 3139 7816
Modigliana FC 14 4560 12376
Galeata FC 15 2516 14892
San Godenzo FI 15 1167 16059
Dovadola FC 16 1653 17712
Civitella di Romagna FC 17 3786 21498
Santa Sofia FC 17 4136 25634
Palazzuolo sul Senio FI 17 1154 26788

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km SW of Faenza (58541 inhabitants)
32 Km SW of Forlì (117913 inhabitants)
36 Km S of Imola (69797 inhabitants)
42 Km W of Cesena (96758 inhabitants)
48 Km NE of Firenze (382808 inhabitants)
54 Km E of Prato (191150 inhabitants)
54 Km NE of Scandicci (50609 inhabitants)
57 Km SW of Ravenna (159116 inhabitants)
60 Km SE of Bologna (386663 inhabitants)
64 Km N of Arezzo (99543 inhabitants)
66 Km E of Pistoia (90315 inhabitants)
67 Km W of Rimini (147750 inhabitants)
86 Km NE of Siena (53903 inhabitants)
90 Km S of Ferrara (133155 inhabitants)
94 Km SE of Modena (184973 inhabitants)
95 Km W of Pesaro (94582 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 1.3 2019-05-11
04:00:44
44.03 11.74 7 2019-05-11
04:25:16
Sala Sismica INGV-Roma 68430551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-11 04:00:44 ± 0.13
Latitude 44.03 ± 0.00
Longitude 11.74 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 68430551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 428
Semi-minor axis of confidence ellipse (meter) 168
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 264
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2716
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 68430551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-11 04:25:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SEI.HHZ. 2019-05-11T04:00:55.36 0.1 undecidable manual S 274 0.2716 103 0.21 93
IV.FIR.HHZ. 2019-05-11T04:00:54.09 3.0 undecidable manual P -0.01 0
IV.RUFI.EHZ. 2019-05-11T04:00:54.72 0.3 undecidable manual S 220 0.2554 104 0.19 70
IV.ASQU.HHZ. 2019-05-11T04:00:53.94 0.3 undecidable manual S 171 0.241 105 -0.05 72
IV.BRIS.HHZ. 2019-05-11T04:00:52.39 0.1 undecidable manual S 7 0.1916 108 0.22 94
IV.SFI.EHZ. 2019-05-11T04:00:50.97 0.3 undecidable manual S 148 0.152 112 0.21 71
IV.RUFI.EHZ. 2019-05-11T04:00:50.21 0.3 undecidable manual P 220 0.2554 104 -0.04 72
IV.SEI.HHZ. 2019-05-11T04:00:50.33 0.1 undecidable manual P 274 0.2716 103 -0.28 92
IV.ASQU.HHZ. 2019-05-11T04:00:49.80 0.1 undecidable manual P 171 0.241 105 -0.15 95
IV.SFI.EHZ. 2019-05-11T04:00:48.08 1.0 negative manual P 148 0.152 112 0 25
IV.BRIS.HHZ. 2019-05-11T04:00:48.83 0.3 undecidable manual P 7 0.1916 108 -0.06 73
IV.LMD.HHZ. 2019-05-11T04:00:47.32 0.1 undecidable manual S 335 0.0477 143 -0.12 99
IV.LMD.HHZ. 2019-05-11T04:00:46.10 0.1 undecidable manual P 335 0.0477 143 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHE. ML:1.1 0.0001155 0.76 AML other m 2019-05-11T04:00:51.47
IV.SFI.EHN. ML:1.1 0.0001205 1.2 AML other m 2019-05-11T04:00:52.61
IV.BRIS.HHE. ML:1.4 0.0001935 0.32 AML other m 2019-05-11T04:00:52.84
IV.BRIS.HHN. ML:1.5 0.000254 0.44 AML other m 2019-05-11T04:00:53.02
IV.ASQU.HHE. ML:1.4 0.000131 0.32 AML other m 2019-05-11T04:00:54.40
IV.ASQU.HHN. ML:1.5 0.0001735 0.2 AML other m 2019-05-11T04:00:54.57
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