Earthquake with magnitude of ML 0.8 on date 18-08-2019 and time 11:32:42 (Italy) in region 6 km W Santa Sofia (FC)

A magnitude ML 0.8 earthquake occured in region: 6 km W Santa Sofia (FC), on

  • 18-08-2019 09:32:42 (UTC)
  • 18-08-2019 11:32:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9220, 11.8380 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
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 17 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.8 2019-08-18
09:32:42
43.9223 11.8383 8 2019-08-18
09:43:04
Sala Sismica INGV-Roma 71600451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-18 09:32:42 ± 0.14
Latitude 43.9223 ± 0.0054
Longitude 11.8383 ± 0.0087
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 71600451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 712
Semi-minor axis of confidence ellipse (meter) 571
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 102
Circular confidence region, given by single value of horizontal uncertainty (meter) 710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 192
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36962
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 71600451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-18 09:43:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CLTB.HHZ. 2019-08-18T09:34:07.83 3.0 negative manual Pn 3.77 0
IV.CPTP.HHZ. 2019-08-18T09:34:06.73 3.0 positive manual Pn -1.06 0
IT.ORP.HGZ. 2019-08-18T09:34:00.74 3.0 undecidable manual Sn -1.98 0
IV.PTRP.HHZ. 2019-08-18T09:33:52.12 3.0 undecidable manual Pg 15.62 0
IX.MNT3.HHZ.02 2019-08-18T09:33:38.86 3.0 undecidable manual Pg 12.27 0
OX.ZOU2.HHZ. 2019-08-18T09:33:20.72 3.0 undecidable manual Pn 1.92 0
IV.TRTR.HHZ. 2019-08-18T09:33:18.47 3.0 undecidable manual S -0.16 0
IV.NDIM.HNZ. 2019-08-18T09:33:07.33 3.0 negative manual P 5.25 0
IV.SEI.HHZ. 2019-08-18T09:32:56.75 0.1 undecidable manual S 291 41.0256 50 0.12 93
IV.CRE.HHZ. 2019-08-18T09:32:55.05 3.0 undecidable manual P 0
IV.RUFI.EHZ. 2019-08-18T09:32:52.48 0.3 undecidable manual S 251 27.9498 105 -0.02 73
IV.SEI.HHZ. 2019-08-18T09:32:50.36 0.3 undecidable manual P 291 41.0256 50 -0.28 67
IV.LMD.HHZ. 2019-08-18T09:32:49.93 0.3 undecidable manual S 329 20.1687 111 0 74
IV.RUFI.EHZ. 2019-08-18T09:32:48.29 0.6 positive manual P 251 27.9498 105 0.03 48
IV.COR1.EHZ. 2019-08-18T09:32:47.40 3.0 undecidable manual S 0.11 0
IV.LMD.HHZ. 2019-08-18T09:32:46.76 1.0 positive manual P 329 20.1687 111 -0.01 25
IV.SFI.EHZ. 2019-08-18T09:32:45.12 0.1 undecidable manual S 161 2.0979 165 -0.08 100
IV.SFI.EHZ. 2019-08-18T09:32:44.20 0.1 undecidable manual P 161 2.0979 165 0.16 99
IV.FRON.EHZ. 2019-08-18T09:32:43.88 3.0 undecidable manual S 1.08 0
IV.PE3.EHZ. 2019-08-18T09:32:32.78 3.0 positive manual P -0.64 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RUFI.EHN. ML:0.7 0.000023310000000000002 0.42 AML other m 2019-08-18T09:32:47.96
IV.LMD.HHN. ML:0.7 0.0000383 0.12 AML other m 2019-08-18T09:32:50.34
IV.LMD.HHE. ML:0.8 0.00004475 1.22 AML other m 2019-08-18T09:32:50.82
IV.SEI.HHE. ML:0.9 0.000025450000000000002 0.58 AML other m 2019-08-18T09:32:57.31
IV.SEI.HHN. ML:1.2 0.00005595 1.64 AML other m 2019-08-18T09:32:57.90
IV.CRE.HHN. ML:0.8 0.00002745 0.06 AML other m 2019-08-18T09:33:03.07
IV.CRE.HHE. ML:0.6 0.000016754999999999998 0.98 AML other m 2019-08-18T09:33:03.99
IV.RUFI.EHE. ML:0.8 0.0000311 0.42 AML other m 2019-08-18T09:33:10.16
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download