Earthquake with magnitude of ML 0.8 on date 04-05-2020 and time 09:41:05 (Italy) in region 8 km E Santa Sofia (FC)

A magnitude ML 0.8 earthquake occured in region: 8 km E Santa Sofia (FC), on

  • 04-05-2020 07:41:05 (UTC)
  • 04-05-2020 09:41:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.94, 12 at 9 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 8 4136 4136
Bagno di Romagna FC 9 6026 10162
Civitella di Romagna FC 10 3786 13948
Galeata FC 10 2516 16464
Sarsina FC 11 3446 19910
Verghereto FC 15 1907 21817
Mercato Saraceno FC 16 6886 28703
Sant'Agata Feltria RN 18 2151 30854
Premilcuore FC 19 799 31653
Predappio FC 19 6346 37999
Rocca San Casciano FC 19 1910 39909
Casteldelci RN 20 407 40316

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km SW of Cesena (96758 inhabitants)
32 Km S of Forlì (117913 inhabitants)
40 Km S of Faenza (58541 inhabitants)
47 Km W of Rimini (147750 inhabitants)
52 Km SE of Imola (69797 inhabitants)
53 Km N of Arezzo (99543 inhabitants)
56 Km S of Ravenna (159116 inhabitants)
63 Km E of Firenze (382808 inhabitants)
69 Km E of Scandicci (50609 inhabitants)
73 Km E of Prato (191150 inhabitants)
73 Km W of Pesaro (94582 inhabitants)
82 Km SE of Bologna (386663 inhabitants)
82 Km W of Fano (60888 inhabitants)
87 Km E of Pistoia (90315 inhabitants)
87 Km NE of Siena (53903 inhabitants)
97 Km NW of Perugia (166134 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
Reviewed
Rev100
ML 0.8 2020-05-04
07:41:05
43.93 12 9 2020-05-04
07:54:38
Sala Sismica INGV-Roma 78831151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-04 07:41:05 ± 0.1
Latitude 43.93 ± 0.00
Longitude 12.00 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78831151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 717
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 720
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 205
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.33185
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 78831151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-04 07:54:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CRJA.HHZ. 2020-05-04T07:42:53.06 3.0 undecidable manual Pg 20.42 0
IV.PAOL.HHZ. 2020-05-04T07:42:43.66 3.0 undecidable manual Sn 5.34 0
IV.CIGN.HHZ. 2020-05-04T07:42:32.84 3.0 undecidable manual Sn 4.31 0
IV.RMP.HHZ. 2020-05-04T07:42:21.93 3.0 undecidable manual Sg 12.83 0
IV.NOCI.HHZ. 2020-05-04T07:42:20.39 3.0 positive manual Pn 8.28 0
IV.POFI.HHZ. 2020-05-04T07:42:19.15 3.0 undecidable manual Sn 2.7 0
IV.PAOL.HHZ. 2020-05-04T07:42:10.37 3.0 negative manual Pg 16.25 0
IV.RCAV.EHZ. 2020-05-04T07:42:07.18 3.0 undecidable manual Sn -1.91 0
MN.BNI.HHZ. 2020-05-04T07:42:05.68 3.0 undecidable manual Pg 10.6 0
IV.GATE.HHZ. 2020-05-04T07:41:57.47 3.0 positive manual Pg 7.23 0
TV.SF01.EHZ. 2020-05-04T07:41:46.04 3.0 undecidable manual Sn 1.06 0
MN.TRI.HHZ. 2020-05-04T07:41:43.73 3.0 undecidable manual Sn -2.83 0
IV.MF5.EHZ. 2020-05-04T07:41:30.14 3.0 undecidable manual Pg 4.94 0
IV.ZONE.HHZ. 2020-05-04T07:41:29.70 3.0 positive manual Pg 1.82 0
IV.CRE.HHZ. 2020-05-04T07:41:18.32 0.6 undecidable manual S 187 0.3175 50 0.08 49
IV.PARC.HHZ. 2020-05-04T07:41:18.80 0.6 undecidable manual S 149 0.3318 50 0.13 48
IV.LMD.HHZ. 2020-05-04T07:41:16.33 0.3 undecidable manual S 304 0.2563 108 0.04 74
IV.ASQU.HHZ. 2020-05-04T07:41:14.40 0.6 undecidable manual S 228 0.2068 112 -0.1 49
IV.PARC.HHZ. 2020-05-04T07:41:13.17 0.6 positive manual P 149 0.3318 50 -0.11 48
IT.FIE.HGZ. 2020-05-04T07:41:13.02 3.0 positive manual P -0.01 0
IV.CRE.HHZ. 2020-05-04T07:41:12.90 0.6 negative manual P 187 0.3175 50 -0.13 48
IV.LMD.HHZ. 2020-05-04T07:41:11.84 0.1 undecidable manual P 304 0.2563 108 -0.07 99
IV.SFI.EHZ. 2020-05-04T07:41:11.43 0.6 undecidable manual S 255 0.1169 125 0.02 51
IV.ASQU.HHZ. 2020-05-04T07:41:10.82 0.3 positive manual P 228 0.2068 112 -0.05 75
IV.SFI.EHZ. 2020-05-04T07:41:09.22 0.1 positive manual P 255 0.1169 125 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHN. ML:1 0.0001008 0.14 AML other m 2020-05-04T07:41:11.51
IV.SFI.EHE. ML:0.6 4.695E-5 1.08 AML other m 2020-05-04T07:41:12.05
IV.ASQU.HHE. ML:1 5.79E-5 0.36 AML other m 2020-05-04T07:41:14.83
IV.ASQU.HHN. ML:0.9 5.31E-5 0.22 AML other m 2020-05-04T07:41:14.84
IV.LMD.HHE. ML:0.6 2.05E-5 0.68 AML other m 2020-05-04T07:41:16.91
IV.LMD.HHN. ML:0.6 2.135E-5 0.98 AML other m 2020-05-04T07:41:17.04
IV.RCAV.EHN. ML:3 0.0001815 0.14 AML other m 2020-05-04T07:42:27.17
IV.RCAV.EHE. ML:2.8 0.00011355 0.86 AML other m 2020-05-04T07:42:27.54
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