Earthquake with magnitude of ML 1.0 on date 30-01-2020 and time 05:29:00 (Italy) in region 4 km W Santa Sofia (FC)

A magnitude ML 1.0 earthquake occured in region: 4 km W Santa Sofia (FC), on

  • 30-01-2020 04:29:00 (UTC)
  • 30-01-2020 05:29:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.95, 11.85 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 4 4136 4136
Premilcuore FC 7 799 4935
Galeata FC 7 2516 7451
Civitella di Romagna FC 9 3786 11237
Portico e San Benedetto FC 10 756 11993
Rocca San Casciano FC 13 1910 13903
Bagno di Romagna FC 14 6026 19929
Tredozio FC 17 1212 21141
San Godenzo FI 19 1167 22308
Dovadola FC 19 1653 23961
Predappio FC 20 6346 30307

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SW of Forlì (117913 inhabitants)
37 Km SW of Cesena (96758 inhabitants)
38 Km S of Faenza (58541 inhabitants)
46 Km S of Imola (69797 inhabitants)
52 Km E of Firenze (382808 inhabitants)
54 Km N of Arezzo (99543 inhabitants)
58 Km E of Scandicci (50609 inhabitants)
58 Km W of Rimini (147750 inhabitants)
59 Km SW of Ravenna (159116 inhabitants)
61 Km E of Prato (191150 inhabitants)
73 Km SE of Bologna (386663 inhabitants)
75 Km E of Pistoia (90315 inhabitants)
82 Km NE of Siena (53903 inhabitants)
85 Km W of Pesaro (94582 inhabitants)
94 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 1.0 2020-01-30
04:29:00
43.95 11.85 8 2020-01-30
04:40:12
Sala Sismica INGV-Roma 76019841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-30 04:29:00 ± 0.12
Latitude 43.95 ± 0.01
Longitude 11.85 ± 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 76019841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 688
Semi-minor axis of confidence ellipse (meter) 446
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 690
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.40919
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 76019841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-30 04:40:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PARC.HHN. 2020-01-30T04:29:15.98 0.6 undecidable manual S 137 0.4092 50 0.23 47
IV.SEI.HHZ. 2020-01-30T04:29:14.80 0.6 undecidable manual S 286 0.3714 50 0.17 47
IV.CRE.HHZ. 2020-01-30T04:29:13.87 0.6 undecidable manual S 168 0.3381 50 0.22 47
IV.BRIS.HNE. 2020-01-30T04:29:11.49 0.3 undecidable manual S 347 0.2815 104 -0.18 72
IV.RUFI.EHZ. 2020-01-30T04:29:10.79 0.6 undecidable manual S 246 0.2725 105 -0.53 45
IV.PARC.HHN. 2020-01-30T04:29:09.48 0.1 undecidable manual P 137 0.4092 50 0.19 94
IV.RINC.HHZ. 2020-01-30T04:29:08.69 0.3 undecidable manual S 250 0.1889 111 0.43 70
IV.SEI.HHZ. 2020-01-30T04:29:08.56 0.1 positive manual P 286 0.3714 50 -0.09 97
IV.BRIS.HNE. 2020-01-30T04:29:07.22 0.1 undecidable manual P 347 0.2815 104 0.28 94
IV.CRE.HHZ. 2020-01-30T04:29:07.38 0.1 undecidable manual P 168 0.3381 50 -0.7 82
IV.ASQU.HHZ. 2020-01-30T04:29:07.61 0.6 undecidable manual S 197 0.1601 114 0.38 47
IV.APEC.HHZ. 2020-01-30T04:29:06.77 3.0 undecidable manual P 0
IV.RUFI.EHZ. 2020-01-30T04:29:06.52 0.1 positive manual P 246 0.2725 105 -0.22 96
IV.RINC.HHZ. 2020-01-30T04:29:05.06 0.1 positive manual P 250 0.1889 111 0.09 100
IV.ASQU.HHZ. 2020-01-30T04:29:04.51 0.6 positive manual P 197 0.1601 114 0.13 50
IV.SFI.EHZ. 2020-01-30T04:29:03.44 0.6 undecidable manual S 187 0.045 148 -0.3 49
IV.SFI.EHZ. 2020-01-30T04:29:02.39 0.6 undecidable manual P 187 0.045 148 0.03 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.HNN. ML:2 0.000955 0.58 AML other m 2020-01-30T04:29:03.57
IV.SFI.EHN. ML:2 0.0010125 0.6 AML other m 2020-01-30T04:29:03.57
IV.SFI.HNE. ML:1.8 0.0005785 1.14 AML other m 2020-01-30T04:29:03.58
IV.SFI.EHE. ML:1.8 0.000583 1.14 AML other m 2020-01-30T04:29:03.58
IV.ASQU.HHN. ML:0.8 5.185E-5 0.64 AML other m 2020-01-30T04:29:07.75
IV.ASQU.HHE. ML:0.8 4.955E-5 1.08 AML other m 2020-01-30T04:29:08.30
IV.SEI.HHE. ML:1.1 4.28E-5 1.24 AML other m 2020-01-30T04:29:15.88
IV.SEI.HHN. ML:1.2 5.94E-5 0.74 AML other m 2020-01-30T04:29:16.60
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download