Earthquake with magnitude of Md 1.1 on date 12-03-2019 and time 01:35:03 (Italy) in region 8 km SE San Godenzo (FI)

A magnitude Md 1.1 earthquake occured in region: 8 km SE San Godenzo (FI), on

  • 12-03-2019 00:35:03 (UTC)
  • 12-03-2019 01:35:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.88, 11.7 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
San Godenzo FI 8 1167 1167
Pratovecchio Stia AR 11 5845 7012
Londa FI 11 1840 8852
Premilcuore FC 12 799 9651
Dicomano FI 14 5515 15166
Castel San Niccolò AR 16 2707 17873
Montemignaio AR 17 566 18439
Portico e San Benedetto FC 17 756 19195
Rufina FI 18 7346 26541
Santa Sofia FC 18 4136 30677
Poppi AR 19 6160 36837
Vicchio FI 19 8044 44881
Pelago FI 20 7660 52541

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Firenze (382808 inhabitants)
44 Km E of Scandicci (50609 inhabitants)
47 Km SW of Forlì (117913 inhabitants)
47 Km SW of Faenza (58541 inhabitants)
48 Km E of Prato (191150 inhabitants)
49 Km NW of Arezzo (99543 inhabitants)
52 Km SW of Cesena (96758 inhabitants)
52 Km S of Imola (69797 inhabitants)
63 Km E of Pistoia (90315 inhabitants)
69 Km NE of Siena (53903 inhabitants)
72 Km SW of Ravenna (159116 inhabitants)
72 Km W of Rimini (147750 inhabitants)
74 Km SE of Bologna (386663 inhabitants)
96 Km E of Lucca (89046 inhabitants)
98 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 Md 1.1 2019-03-12
00:35:03
43.88 11.7 7 2019-03-12
00:48:49
Sala Sismica INGV-Roma 66425651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-12 00:35:03 ± 0.17
Latitude 43.88 ± 0.00
Longitude 11.70 ± 0.00
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 66425651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 347
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 335
Circular confidence region, given by single value of horizontal uncertainty (meter) 350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.19335
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 3
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.6
Num. used stations 3
Type of magnitude Md
Reference to an origin 66425651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-12 00:48:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
mn.BZS.HHZ. 2019-03-12T00:36:42.01 3.0 positive manual Pn 7.85 0
IV.PZUN.HHZ. 2019-03-12T00:36:34.43 3.0 undecidable manual Sn 0.34 0
IV.PTRJ.HNZ. 2019-03-12T00:36:08.32 3.0 undecidable manual Sn 2.85 0
IV.MBAL.EHZ. 2019-03-12T00:36:06.43 3.0 undecidable manual Sg 3.79 0
GU.RRL.HHZ. 2019-03-12T00:36:04.85 3.0 undecidable manual Pn 8.4 0
IV.BULG.HHZ. 2019-03-12T00:35:52.00 3.0 positive manual Pn -1.41 0
GU.RORO.HHZ. 2019-03-12T00:35:50.11 3.0 undecidable manual Pg 8.67 0
IV.PTRP.HHZ. 2019-03-12T00:35:49.19 3.0 undecidable manual Pn -3.83 0
IV.POFI.HHZ. 2019-03-12T00:35:24.42 3.0 undecidable manual Pn -0.73 0
IV.ZCCA.HHZ. 2019-03-12T00:35:12.74 3.0 positive manual Pn -3.72 0
IV.LMD.HHZ. 2019-03-12T00:35:11.86 0.1 undecidable manual S 2 0.1934 108 0.06 98
IV.RUFI.EHZ. 2019-03-12T00:35:09.97 0.1 undecidable manual S 251 0.143 114 -0.02 100
IV.LMD.HHZ. 2019-03-12T00:35:08.38 0.1 undecidable manual P 2 0.1934 108 -0.11 97
IV.SFI.EHZ. 2019-03-12T00:35:08.80 0.1 undecidable manual S 79 0.1097 120 -0.04 100
IV.CIMA.HNZ. 2019-03-12T00:35:08.57 3.0 positive manual P -2.76 0
IV.RUFI.EHZ. 2019-03-12T00:35:07.48 0.1 undecidable manual P 251 0.143 114 0.04 99
IV.MDAR.HNZ. 2019-03-12T00:35:06.33 3.0 negative manual P -0.13 0
IV.SFI.EHZ. 2019-03-12T00:35:06.85 0.1 undecidable manual P 79 0.1097 120 0.07 99
IV.ATFO.HHZ. 2019-03-12T00:35:02.24 3.0 negative manual P 3.27 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHZ. Md:1 8 END duration s
IV.RUFI.EHZ. Md:1.2 9 END duration s
IV.LMD.HHZ. Md:1.1 8 END duration s
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
Waveforms Seismic signals in full SEED format Download