Earthquake with magnitude of ML 1.5 on date 17-08-2019 and time 20:06:30 (Italy) in region 6 km SE Premilcuore (FC)

A magnitude ML 1.5 earthquake occured in region: 6 km SE Premilcuore (FC), on

  • 17-08-2019 18:06:30 (UTC)
  • 17-08-2019 20:06:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.93, 11.82 at 8 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 6 799 799
Santa Sofia FC 7 4136 4935
Galeata FC 10 2516 7451
Portico e San Benedetto FC 11 756 8207
Civitella di Romagna FC 13 3786 11993
Rocca San Casciano FC 14 1910 13903
Bagno di Romagna FC 15 6026 19929
San Godenzo FI 16 1167 21096
Tredozio FC 17 1212 22308
Pratovecchio Stia AR 18 5845 28153

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Forlì (117913 inhabitants)
40 Km S of Faenza (58541 inhabitants)
41 Km SW of Cesena (96758 inhabitants)
47 Km S of Imola (69797 inhabitants)
49 Km E of Firenze (382808 inhabitants)
52 Km N of Arezzo (99543 inhabitants)
55 Km E of Scandicci (50609 inhabitants)
58 Km E of Prato (191150 inhabitants)
61 Km W of Rimini (147750 inhabitants)
62 Km SW of Ravenna (159116 inhabitants)
72 Km E of Pistoia (90315 inhabitants)
73 Km SE of Bologna (386663 inhabitants)
79 Km NE of Siena (53903 inhabitants)
88 Km W of Pesaro (94582 inhabitants)
97 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
18:06:30
43.93 11.82 8 2019-08-17
18:12:24
Sala Sismica INGV-Roma 71580361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-17 18:06:30 ± 0.15
Latitude 43.93 ± 0.00
Longitude 11.82 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71580361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1046
Semi-minor axis of confidence ellipse (meter) 489
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 93
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.527
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
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 71580361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-17 18:12:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MPPT.EHZ. 2019-08-17T18:06:49.90 0.3 undecidable manual S 273 0.527 50 0.51 65
IV.MOCL.EHZ. 2019-08-17T18:06:47.75 0.6 undecidable manual S 279 0.4667 50 0.15 47
IV.SEI.HHZ. 2019-08-17T18:06:44.19 0.3 undecidable manual S 290 0.3543 50 -0.07 74
IV.BRIS.HHZ. 2019-08-17T18:06:42.73 0.6 undecidable manual S 352 0.2923 103 0.54 45
IV.OSSC.HHZ. 2019-08-17T18:06:42.50 3.0 undecidable manual P 0.1 0
IV.MPPT.EHZ. 2019-08-17T18:06:41.31 0.1 undecidable manual P 273 0.527 50 -0.14 94
IV.RUFI.EHZ. 2019-08-17T18:06:40.16 0.6 undecidable manual S 247 0.2446 106 -0.24 49
IV.MOCL.EHZ. 2019-08-17T18:06:40.30 0.1 undecidable manual P 279 0.4667 50 -0.11 95
IV.SEI.HHZ. 2019-08-17T18:06:38.06 0.1 undecidable manual P 290 0.3543 50 -0.43 91
IV.CRE.HHZ. 2019-08-17T18:06:37.67 3.0 negative manual P -0.06 0
IV.ASQU.HHZ. 2019-08-17T18:06:37.07 0.3 undecidable manual S 190 0.1394 117 0.46 71
IV.BRIS.HHZ. 2019-08-17T18:06:37.33 0.1 undecidable manual P 352 0.2923 103 0.04 100
IV.LMD.HHZ. 2019-08-17T18:06:37.54 0.3 undecidable manual S 330 0.1646 113 0.04 77
IV.RUFI.EHZ. 2019-08-17T18:06:36.13 0.1 positive manual P 247 0.2446 106 -0.13 99
IV.ASQU.HHZ. 2019-08-17T18:06:34.27 0.3 positive manual P 190 0.1394 117 0.2 75
IV.LMD.HHZ. 2019-08-17T18:06:34.46 1.0 positive manual P 330 0.1646 113 -0.12 25
IV.SFI.EHZ. 2019-08-17T18:06:33.36 0.3 undecidable manual S 148 0.0351 154 -0.25 76
IV.SFI.EHZ. 2019-08-17T18:06:32.20 0.6 undecidable manual P 148 0.0351 154 -0.14 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHE. ML:0 0.0023490045 0.1024 AML other m 2019-08-17T18:06:33.41
IV.SFI.EHN. ML:0 0.0030429385 0.0768 AML other m 2019-08-17T18:06:33.48
IV.SFI.HNE. ML:0 0.0023296765 0.0896 AML other m 2019-08-17T18:06:33.41
IV.SFI.HNN. ML:0 0.0030054465 0.0768 AML other m 2019-08-17T18:06:33.48
IV.ASQU.HHE. ML:1.4 0.00023511065 0.1408 AML other m 2019-08-17T18:06:37.70
IV.ASQU.HHN. ML:1.5 0.00030253125 0.1536 AML other m 2019-08-17T18:06:37.70
IV.LMD.HHE. ML:1.6 0.0003599788 0.2176 AML other m 2019-08-17T18:06:37.78
IV.LMD.HHN. ML:1.6 0.0003392418 0.2432 AML other m 2019-08-17T18:06:37.63
IV.RUFI.EHE. ML:1.2 9.421677E-5 0.4096 AML other m 2019-08-17T18:06:41.75
IV.RUFI.EHN. ML:1.6 0.000224285435 0.2432 AML other m 2019-08-17T18:06:40.61
IV.BRIS.HHE. ML:1.6 0.0001745339 0.2816 AML other m 2019-08-17T18:06:43.03
IV.BRIS.HHN. ML:1.5 0.00013973185 0.3584 AML other m 2019-08-17T18:06:43.16
IV.BRIS.HNE. ML:1.6 0.0001810055 0.2816 AML other m 2019-08-17T18:06:43.03
IV.BRIS.HNN. ML:1.7 0.00024597735 0.4608 AML other m 2019-08-17T18:06:43.17
IV.SEI.HHE. ML:1.6 0.0001466948 0.2432 AML other m 2019-08-17T18:06:45.21
IV.SEI.HHN. ML:1.8 0.0002533977 0.3584 AML other m 2019-08-17T18:06:44.80
IV.MOCL.EHE. ML:1.1 3.177785E-5 0.2432 AML other m 2019-08-17T18:06:48.08
IV.MOCL.EHN. ML:1.1 3.6221775E-5 0.1792 AML other m 2019-08-17T18:06:48.84
IV.MPPT.EHE. ML:1 1.9981295E-5 0.2944 AML other m 2019-08-17T18:06:50.33
IV.MPPT.EHN. ML:1.2 3.4947855E-5 0.3712 AML other m 2019-08-17T18:06:50.02
IV.OSSC.HHE. ML:0.9 1.4562675E-5 0.256 AML other m 2019-08-17T18:06:53.92
IV.OSSC.HHN. ML:1 1.929856E-5 0.4736 AML other m 2019-08-17T18:06:55.74
IV.OSSC.HNE. ML:1.7 9.2687215E-5 0.8576 AML other m 2019-08-17T18:06:58.09
IV.OSSC.HNN. ML:1.8 0.000116038115 0.6016 AML other m 2019-08-17T18:06:58.55
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