Earthquake with magnitude of ML 1.5 on date 18-08-2019 and time 00:12:15 (Italy) in region 7 km W Santa Sofia (FC)

A magnitude ML 1.5 earthquake occured in region: 7 km W Santa Sofia (FC), on

  • 17-08-2019 22:12:15 (UTC)
  • 18-08-2019 00:12:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.92, 11.83 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
Premilcuore FC 7 799 799
Santa Sofia FC 7 4136 4935
Galeata FC 11 2516 7451
Portico e San Benedetto FC 12 756 8207
Civitella di Romagna FC 13 3786 11993
Bagno di Romagna FC 14 6026 18019
Rocca San Casciano FC 16 1910 19929
San Godenzo FI 17 1167 21096
Pratovecchio Stia AR 17 5845 26941
Tredozio FC 19 1212 28153

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Forlì (117913 inhabitants)
41 Km S of Faenza (58541 inhabitants)
41 Km SW of Cesena (96758 inhabitants)
49 Km E of Firenze (382808 inhabitants)
49 Km S of Imola (69797 inhabitants)
51 Km N of Arezzo (99543 inhabitants)
55 Km E of Scandicci (50609 inhabitants)
59 Km E of Prato (191150 inhabitants)
61 Km W of Rimini (147750 inhabitants)
63 Km SW of Ravenna (159116 inhabitants)
73 Km E of Pistoia (90315 inhabitants)
74 Km SE of Bologna (386663 inhabitants)
78 Km NE of Siena (53903 inhabitants)
87 Km W of Pesaro (94582 inhabitants)
96 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 2019-08-17
22:12:15
43.92 11.83 7 2019-08-17
22:20:28
Sala Sismica INGV-Roma 71583701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-17 22:12:15 ± 0.08
Latitude 43.92 ± 0.00
Longitude 11.83 ± 0.01
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71583701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 604
Semi-minor axis of confidence ellipse (meter) 92
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 600
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 28
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.66999
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 11
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 71583701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-17 22:20:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MIGL.HHZ. 2019-08-17T22:13:36.98 3.0 undecidable manual Pg 10.21 0
IV.ZONE.HHZ. 2019-08-17T22:13:17.13 3.0 undecidable manual Sn -2.84 0
CR.ZAG.BHZ. 2019-08-17T22:13:16.90 3.0 undecidable manual Pn 7.3 0
IV.MONC.HHZ. 2019-08-17T22:13:07.77 3.0 undecidable manual Pn 5.01 0
IV.POFI.HHZ. 2019-08-17T22:12:57.36 3.0 undecidable manual Pn 0.3 0
IV.ATMI.HHZ. 2019-08-17T22:12:38.81 0.3 undecidable manual S 151 0.67 50 0.55 59
GU.CARD.HHZ. 2019-08-17T22:12:36.09 3.0 undecidable manual P 1.63 0
IV.CAFI.HHZ. 2019-08-17T22:12:36.37 0.6 undecidable manual S 170 0.6025 50 0.11 44
IV.MPPT.EHZ. 2019-08-17T22:12:34.61 0.6 undecidable manual S 274 0.5306 50 0.46 41
IV.MOCL.EHZ. 2019-08-17T22:12:32.18 0.6 undecidable manual S 280 0.4712 50 -0.21 44
IV.PARC.HHZ. 2019-08-17T22:12:30.40 0.3 undecidable manual S 133 0.4047 50 -0.01 70
IV.SEI.HHZ. 2019-08-17T22:12:29.01 0.6 undecidable manual S 291 0.3606 50 -0.11 46
IV.ATMI.HHZ. 2019-08-17T22:12:28.09 0.1 undecidable manual P 151 0.67 50 -0.38 82
IV.CRE.HHZ. 2019-08-17T22:12:27.57 0.6 undecidable manual S 163 0.3175 102 0 47
IV.CAFI.HHZ. 2019-08-17T22:12:27.72 0.6 positive manual P 170 0.6025 50 0.4 41
IV.BRIS.HHZ. 2019-08-17T22:12:27.53 0.3 undecidable manual S 352 0.304 102 0.45 65
IV.MPPT.EHZ. 2019-08-17T22:12:26.07 1.0 negative manual P 274 0.5306 50 -0.03 23
IV.MOCL.EHZ. 2019-08-17T22:12:24.94 0.6 negative manual P 280 0.4712 50 -0.15 45
IV.RUFI.EHZ. 2019-08-17T22:12:24.94 0.6 undecidable manual S 250 0.2437 105 0.13 47
IV.PARC.HHZ. 2019-08-17T22:12:23.51 1.0 undecidable manual P 133 0.4047 50 -0.43 21
IV.CRE.HHZ. 2019-08-17T22:12:22.04 0.3 negative manual P 163 0.3175 102 -0.26 68
IV.SEI.HHZ. 2019-08-17T22:12:22.71 0.1 undecidable manual P 291 0.3606 50 -0.48 85
IV.BRIS.HHZ. 2019-08-17T22:12:21.99 0.1 positive manual P 352 0.304 102 -0.03 95
IV.RUFI.EHZ. 2019-08-17T22:12:20.76 0.1 positive manual P 250 0.2437 105 0.05 95
IV.ASQU.HHZ. 2019-08-17T22:12:20.59 0.6 undecidable manual S 192 0.1295 117 -0.08 49
IV.ASQU.HHZ. 2019-08-17T22:12:18.72 0.3 positive manual P 192 0.1295 117 0.4 68
IV.SFI.EHE. 2019-08-17T22:12:17.61 0.3 undecidable manual S 141 0.0234 160 -0.15 73
IV.SFI.EHE. 2019-08-17T22:12:16.61 0.1 undecidable manual P 141 0.0234 160 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:1.7 0.0005905 0.18 AML other m 2019-08-17T22:12:21.77
IV.ASQU.HHE. ML:1.6 0.0004295 1.4 AML other m 2019-08-17T22:12:21.78
IV.RUFI.EHN. ML:1.8 0.000327 0.28 AML other m 2019-08-17T22:12:25.28
IV.RUFI.EHE. ML:1.5 0.000186 0.4 AML other m 2019-08-17T22:12:25.13
IV.BRIS.HHE. ML:1.8 0.0002865 0.32 AML other m 2019-08-17T22:12:27.86
IV.BRIS.HHN. ML:1.8 0.000268 0.34 AML other m 2019-08-17T22:12:27.81
IV.CRE.HHN. ML:2 0.000375 0.2 AML other m 2019-08-17T22:12:28.02
IV.CRE.HHE. ML:1.3 8.15E-5 0.82 AML other m 2019-08-17T22:12:29.24
IV.SEI.HHN. ML:2 0.00035 0.38 AML other m 2019-08-17T22:12:29.65
IV.SEI.HHE. ML:1.8 0.0001995 0.28 AML other m 2019-08-17T22:12:30.63
IV.PARC.HHN. ML:1.1 3.435E-5 1.78 AML other m 2019-08-17T22:12:31.08
IV.PARC.HHE. ML:0.9 2.28E-5 0.48 AML other m 2019-08-17T22:12:32.37
IV.MOCL.EHE. ML:1.4 6.38E-5 0.18 AML other m 2019-08-17T22:12:32.89
IV.MOCL.EHN. ML:1.4 6.0E-5 0.72 AML other m 2019-08-17T22:12:32.58
IV.MPPT.EHN. ML:1.4 5.215E-5 1.48 AML other m 2019-08-17T22:12:35.05
IV.MPPT.EHE. ML:1.3 3.895E-5 0.74 AML other m 2019-08-17T22:12:35.12
IV.CAFI.HHE. ML:1 2.2E-5 0.88 AML other m 2019-08-17T22:12:41.86
IV.CAFI.HHN. ML:1 1.995E-5 0.52 AML other m 2019-08-17T22:12:42.55
IV.ATMI.HHN. ML:1.5 5.165E-5 0.34 AML other m 2019-08-17T22:12:44.54
IV.ATMI.HHE. ML:1.5 4.735E-5 0.36 AML other m 2019-08-17T22:12:45.25
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