Earthquake with magnitude of ML 1.5 on date 19-08-2019 and time 01:12:35 (Italy) in region 6 km W Santa Sofia (FC)

A magnitude ML 1.5 earthquake occured in region: 6 km W Santa Sofia (FC), on

  • 18-08-2019 23:12:35 (UTC)
  • 19-08-2019 01:12:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.92, 11.84 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
Santa Sofia FC 6 4136 4136
Premilcuore FC 8 799 4935
Galeata FC 10 2516 7451
Civitella di Romagna FC 13 3786 11237
Portico e San Benedetto FC 13 756 11993
Bagno di Romagna FC 13 6026 18019
Rocca San Casciano FC 16 1910 19929
Pratovecchio Stia AR 17 5845 25774
San Godenzo FI 18 1167 26941
Tredozio FC 19 1212 28153
Verghereto FC 19 1907 30060

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Forlì (117913 inhabitants)
40 Km SW of Cesena (96758 inhabitants)
41 Km S of Faenza (58541 inhabitants)
49 Km S of Imola (69797 inhabitants)
50 Km E of Firenze (382808 inhabitants)
51 Km N of Arezzo (99543 inhabitants)
56 Km E of Scandicci (50609 inhabitants)
60 Km E of Prato (191150 inhabitants)
60 Km W of Rimini (147750 inhabitants)
62 Km SW of Ravenna (159116 inhabitants)
74 Km E of Pistoia (90315 inhabitants)
75 Km SE of Bologna (386663 inhabitants)
78 Km NE of Siena (53903 inhabitants)
86 Km W of Pesaro (94582 inhabitants)
95 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 1.5 2019-08-18
23:12:35
43.92 11.84 7 2019-08-19
01:01:22
Sala Sismica INGV-Roma 71613581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-18 23:12:35 ± 0.21
Latitude 43.92 ± 0.01
Longitude 11.84 ± 0.02
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71613581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1138
Semi-minor axis of confidence ellipse (meter) 464
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31296
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 71613581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-19 01:01:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2019-08-18T23:12:48.29 3.0 positive manual P -0.08 0
IV.CRE.HHZ. 2019-08-18T23:12:47.73 0.6 undecidable manual S 165 0.313 102 0.03 48
IV.BRIS.HHZ. 2019-08-18T23:12:47.84 0.3 undecidable manual S 350 0.3076 102 0.36 67
IV.OSSC.HHZ. 2019-08-18T23:12:47.28 3.0 undecidable manual P 0.13 0
IV.MPPT.EHZ. 2019-08-18T23:12:46.35 3.0 positive manual P 0.07 0
IV.RUFI.EHZ. 2019-08-18T23:12:45.00 0.6 undecidable manual S 251 0.2518 105 -0.41 45
IV.MOCL.EHZ. 2019-08-18T23:12:45.22 3.0 negative manual P 0.04 0
IV.SEI.HHZ. 2019-08-18T23:12:43.06 3.0 negative manual P -0.07 0
IV.LMD.HHZ. 2019-08-18T23:12:43.06 0.6 undecidable manual S 329 0.1826 110 0.21 47
IV.PARC.HHZ. 2019-08-18T23:12:43.65 3.0 undecidable manual P -0.31 0
IV.BRIS.HHZ. 2019-08-18T23:12:42.28 0.1 positive manual P 350 0.3076 102 -0.09 95
IV.CRE.HHZ. 2019-08-18T23:12:42.18 0.3 undecidable manual P 165 0.313 102 -0.31 68
IV.ASQU.HHZ. 2019-08-18T23:12:41.90 0.6 undecidable manual S 196 0.1295 117 0.91 38
IV.RUFI.EHZ. 2019-08-18T23:12:40.95 1.0 undecidable manual P 251 0.2518 105 -0.22 23
IV.LMD.HHZ. 2019-08-18T23:12:39.48 0.3 undecidable manual P 329 0.1826 110 -0.22 71
IV.ASQU.HHZ. 2019-08-18T23:12:38.86 0.1 positive manual P 196 0.1295 117 0.24 95
IV.SFI.EHZ. 2019-08-18T23:12:37.72 0.6 undecidable manual S 163 0.018 165 -0.27 48
IV.SFI.EHZ. 2019-08-18T23:12:36.80 0.1 undecidable manual P 163 0.018 165 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:1.7 0.000556 0.18 AML other m 2019-08-18T23:12:41.89
IV.ASQU.HHE. ML:1.5 0.0003575 0.56 AML other m 2019-08-18T23:12:41.89
IV.LMD.HHN. ML:1.8 0.0005205 0.8 AML other m 2019-08-18T23:12:42.48
IV.LMD.HHE. ML:1.6 0.000316 0.14 AML other m 2019-08-18T23:12:43.36
IV.RUFI.EHE. ML:1.5 0.0001575 0.46 AML other m 2019-08-18T23:12:45.60
IV.RUFI.EHN. ML:1.6 0.0002185 0.26 AML other m 2019-08-18T23:12:45.51
IV.CRE.HHN. ML:1.8 0.0002895 0.22 AML other m 2019-08-18T23:12:48.11
IV.BRIS.HHE. ML:1.8 0.0002685 0.32 AML other m 2019-08-18T23:12:48.22
IV.BRIS.HHN. ML:1.7 0.000206 0.36 AML other m 2019-08-18T23:12:48.16
IV.CRE.HHE. ML:1.2 6.25E-5 0.44 AML other m 2019-08-18T23:12:49.93
IV.SEI.HHN. ML:1.9 0.0002625 1.68 AML other m 2019-08-18T23:12:49.99
IV.SEI.HHE. ML:1.6 0.000137 0.2 AML other m 2019-08-18T23:12:50.96
IV.PARC.HHE. ML:0.8 2.025E-5 0.44 AML other m 2019-08-18T23:12:51.65
IV.PARC.HHN. ML:1.1 3.94E-5 1.14 AML other m 2019-08-18T23:12:52.12
IV.MOCL.EHE. ML:1.2 3.63E-5 0.2 AML other m 2019-08-18T23:12:53.12
IV.MOCL.EHN. ML:1.4 5.385E-5 1.26 AML other m 2019-08-18T23:12:53.81
IV.MPPT.EHN. ML:1.2 3.425E-5 0.44 AML other m 2019-08-18T23:12:55.10
IV.MPPT.EHE. ML:1.1 2.5E-5 0.34 AML other m 2019-08-18T23:12:55.43
IV.OSSC.HHN. ML:1.3 3.565E-5 0.6 AML other m 2019-08-18T23:12:58.93
IV.OSSC.HHE. ML:1.1 2.64E-5 0.5 AML other m 2019-08-18T23:12:59.64
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