Earthquake with magnitude of ML 1.3 on date 04-05-2020 and time 10:54:06 (Italy) in region 5 km SE Rocca San Casciano (FC)

A magnitude ML 1.3 earthquake occured in region: 5 km SE Rocca San Casciano (FC), on

  • 04-05-2020 08:54:06 (UTC)
  • 04-05-2020 10:54:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.02, 11.87 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
Rocca San Casciano FC 5 1910 1910
Galeata FC 5 2516 4426
Civitella di Romagna FC 6 3786 8212
Portico e San Benedetto FC 7 756 8968
Premilcuore FC 9 799 9767
Santa Sofia FC 9 4136 13903
Dovadola FC 11 1653 15556
Tredozio FC 12 1212 16768
Predappio FC 13 6346 23114
Modigliana FC 16 4560 27674
Castrocaro Terme e Terra del Sole FC 18 6426 34100
Meldola FC 19 9970 44070

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SW of Forlì (117913 inhabitants)
29 Km S of Faenza (58541 inhabitants)
33 Km W of Cesena (96758 inhabitants)
39 Km SE of Imola (69797 inhabitants)
51 Km SW of Ravenna (159116 inhabitants)
56 Km W of Rimini (147750 inhabitants)
56 Km NE of Firenze (382808 inhabitants)
62 Km N of Arezzo (99543 inhabitants)
62 Km E of Scandicci (50609 inhabitants)
64 Km E of Prato (191150 inhabitants)
67 Km SE of Bologna (386663 inhabitants)
77 Km E of Pistoia (90315 inhabitants)
85 Km W of Pesaro (94582 inhabitants)
89 Km NE of Siena (53903 inhabitants)
93 Km S of Ferrara (133155 inhabitants)
95 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
Reviewed
Rev100
ML 1.3 2020-05-04
08:54:06
44.02 11.87 9 2020-05-04
09:03:27
Sala Sismica INGV-Roma 78831851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-04 08:54:06 ± 0.14
Latitude 44.02 ± 0.00
Longitude 11.87 ± 0.01
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78831851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 750
Semi-minor axis of confidence ellipse (meter) 288
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
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 18
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 78831851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-04 09:03:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2020-05-04T08:55:47.23 3.0 undecidable manual Sn 2.06 0
IV.IMI.HHZ. 2020-05-04T08:55:41.44 3.0 undecidable manual Sg 13.98 0
IV.PTRJ.HHZ. 2020-05-04T08:54:55.59 3.0 undecidable manual Pn -2.2 0
GU.GRAM.HHZ. 2020-05-04T08:54:52.85 3.0 undecidable manual S 2.18 0
IV.MDI.HHZ. 2020-05-04T08:54:49.37 3.0 undecidable manual Pg 5.42 0
OX.CIMO.HHZ. 2020-05-04T08:54:43.06 3.0 undecidable manual Pn -0.72 0
IV.BOZZ.HNZ. 2020-05-04T08:54:32.70 3.0 undecidable manual P 0.44 0
IV.ASSB.HHZ. 2020-05-04T08:54:30.81 3.0 undecidable manual P 2.71 0
IV.APEC.HHZ. 2020-05-04T08:54:29.53 3.0 undecidable manual S 0.72 0
IV.CRE.HHZ. 2020-05-04T08:54:21.92 0.3 undecidable manual S 171 0.4092 50 0.26 68
IV.SEI.HHZ. 2020-05-04T08:54:20.74 0.3 undecidable manual S 275 0.366 50 0.37 67
IV.RONT.HHZ. 2020-05-04T08:54:19.12 0.3 undecidable manual S 265 0.313 50 0.32 68
IV.RUFI.EHZ. 2020-05-04T08:54:18.68 0.1 undecidable manual S 234 0.3166 50 -0.24 93
IV.ASQU.HHZ. 2020-05-04T08:54:16.11 0.1 undecidable manual S 194 0.2338 109 0.02 98
IV.CRE.HHZ. 2020-05-04T08:54:15.20 0.3 undecidable manual P 171 0.4092 50 -0.08 70
IV.RINC.HHZ. 2020-05-04T08:54:15.91 0.3 undecidable manual S 234 0.232 109 -0.1 73
IV.SEI.HHZ. 2020-05-04T08:54:14.31 0.1 undecidable manual P 275 0.366 50 -0.23 92
IV.VISG.HHZ. 2020-05-04T08:54:14.26 3.0 undecidable manual P 0.41 0
IV.RUFI.EHZ. 2020-05-04T08:54:13.47 0.1 undecidable manual P 234 0.3166 50 -0.23 93
IV.RONT.HHZ. 2020-05-04T08:54:13.56 0.3 undecidable manual P 265 0.313 50 -0.07 72
IV.LMD.HHZ. 2020-05-04T08:54:12.40 0.1 undecidable manual S 295 0.1259 122 0.08 99
IV.ASQU.HHZ. 2020-05-04T08:54:12.01 0.1 undecidable manual P 194 0.2338 109 -0.06 98
IV.SFI.EHZ. 2020-05-04T08:54:12.22 0.3 undecidable manual S 187 0.1196 124 0.1 74
IV.RINC.HHZ. 2020-05-04T08:54:11.97 0.1 undecidable manual P 234 0.232 109 -0.05 98
IV.LMD.HHZ. 2020-05-04T08:54:09.85 0.1 undecidable manual P 295 0.1259 122 -0.04 100
IV.SFI.EHZ. 2020-05-04T08:54:09.91 0.1 undecidable manual P 187 0.1196 124 0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHE. ML:1.2 0.000169 1.06 AML other m 2020-05-04T08:54:12.54
IV.SFI.EHN. ML:1.3 0.0002245 1.44 AML other m 2020-05-04T08:54:12.81
IV.SFI.EHE. ML:1.4 0.000248 0.12 AML other m 2020-05-04T08:54:12.92
IV.LMD.HHN. ML:1.3 0.0001875 0.2 AML other m 2020-05-04T08:54:14.19
IV.ASQU.HHN. ML:1.1 6.835E-5 0.26 AML other m 2020-05-04T08:54:16.50
IV.ASQU.HHE. ML:1.2 0.0001003 0.7 AML other m 2020-05-04T08:54:16.35
IV.RINC.HHE. ML:1.3 0.00010355 0.16 AML other m 2020-05-04T08:54:16.74
IV.RINC.HHN. ML:1.1 8.25E-5 1.8 AML other m 2020-05-04T08:54:17.07
IV.RUFI.EHE. ML:1.1 5.21E-5 0.32 AML other m 2020-05-04T08:54:19.29
IV.RONT.HHE. ML:1.5 0.0001405 0.38 AML other m 2020-05-04T08:54:19.51
IV.RUFI.EHN. ML:0.9 2.89E-5 0.48 AML other m 2020-05-04T08:54:20.50
IV.SEI.HHN. ML:1.5 9.91E-5 0.26 AML other m 2020-05-04T08:54:21.35
IV.SEI.HHE. ML:1.3 6.62E-5 0.6 AML other m 2020-05-04T08:54:21.51
IV.RONT.HHN. ML:1.4 0.00010935 0.78 AML other m 2020-05-04T08:54:21.74
IV.CRE.HHN. ML:1.3 6.275E-5 0.28 AML other m 2020-05-04T08:54:22.20
IV.CRE.HHE. ML:1 2.915E-5 0.24 AML other m 2020-05-04T08:54:22.85
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