Earthquake with magnitude of ML 1.5 on date 02-08-2020 and time 19:08:49 (Italy) in region 7 km E Palazzuolo sul Senio (FI)

A magnitude ML 1.5 earthquake occured in region: 7 km E Palazzuolo sul Senio (FI), on

  • 02-08-2020 17:08:49 (UTC)
  • 02-08-2020 19:08:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.14, 11.62 at 10 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
Palazzuolo sul Senio FI 7 1154 1154
Marradi FI 7 3139 4293
Casola Valsenio RA 9 2617 6910
Tredozio FC 12 1212 8122
Castel del Rio BO 12 1246 9368
Modigliana FC 14 4560 13928
Fontanelice BO 14 1943 15871
Brisighella RA 15 7639 23510
Borgo Tossignano BO 15 3288 26798
Riolo Terme RA 17 5720 32518
Casalfiumanese BO 17 3438 35956
Portico e San Benedetto FC 18 756 36712
Firenzuola FI 20 4726 41438
Rocca San Casciano FC 20 1910 43348

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SW of Imola (69797 inhabitants)
26 Km SW of Faenza (58541 inhabitants)
35 Km W of Forlì (117913 inhabitants)
45 Km SE of Bologna (386663 inhabitants)
50 Km W of Cesena (96758 inhabitants)
51 Km NE of Firenze (382808 inhabitants)
51 Km NE of Prato (191150 inhabitants)
55 Km SW of Ravenna (159116 inhabitants)
55 Km NE of Scandicci (50609 inhabitants)
61 Km E of Pistoia (90315 inhabitants)
76 Km W of Rimini (147750 inhabitants)
77 Km S of Ferrara (133155 inhabitants)
78 Km N of Arezzo (99543 inhabitants)
79 Km SE of Modena (184973 inhabitants)
92 Km SE of Carpi (70699 inhabitants)
94 Km N of Siena (53903 inhabitants)
96 Km E of Lucca (89046 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 1.5 2020-08-02
17:08:49
44.14 11.62 10 2020-08-02
17:15:54
Sala Sismica INGV-Roma 81586251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-02 17:08:49 ± 0.06
Latitude 44.14 ± 0.00
Longitude 11.62 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81586251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 402
Semi-minor axis of confidence ellipse (meter) 384
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36512
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 81586251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-02 17:15:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2020-08-02T17:10:36.64 3.0 undecidable manual Sg 14.87 0
GE.MATE.HHZ. 2020-08-02T17:10:25.49 3.0 undecidable manual Pg 19.34 0
IT.VRB.HGZ. 2020-08-02T17:10:11.33 3.0 undecidable manual Sn 1.75 0
IV.LPEL.HHZ. 2020-08-02T17:10:06.47 3.0 undecidable manual Sn -2.52 0
IV.CMPR.HHZ. 2020-08-02T17:10:04.96 3.0 undecidable manual Pn 4.82 0
IV.MTRA.HNZ. 2020-08-02T17:09:51.22 3.0 undecidable manual Sg 4.64 0
IV.AGLI.HHZ. 2020-08-02T17:09:45.79 3.0 positive manual Pn 1.88 0
IV.ASSB.HHZ. 2020-08-02T17:09:31.80 3.0 undecidable manual S -1.04 0
TV.SF04.EHZ. 2020-08-02T17:09:29.94 3.0 undecidable manual S -2.24 0
IV.MAON.HHZ. 2020-08-02T17:09:20.23 3.0 undecidable manual Pn 0.56 0
IV.CSNT.HHZ. 2020-08-02T17:09:14.64 3.0 undecidable manual S -0.18 0
GU.GRAM.HHZ. 2020-08-02T17:09:12.53 3.0 positive manual P 0.56 0
IV.FNVD.HHZ. 2020-08-02T17:09:03.71 0.6 undecidable manual S 274 0.3597 50 0.56 43
IV.MOCL.EHZ. 2020-08-02T17:09:02.95 0.6 undecidable manual S 247 0.3453 50 0.2 47
IV.SFI.EHZ. 2020-08-02T17:09:01.06 0.6 undecidable manual S 146 0.286 50 0.08 49
IV.RUFI.EHZ. 2020-08-02T17:09:01.76 0.6 undecidable manual S 195 0.3148 50 -0.05 49
IV.RINC.HHZ. 2020-08-02T17:09:00.12 0.6 undecidable manual S 183 0.2554 50 0.05 49
IV.SEI.HHZ. 2020-08-02T17:08:58.31 0.6 undecidable manual S 245 0.2086 112 -0.11 49
IV.RONT.HHZ. 2020-08-02T17:08:58.73 0.6 undecidable manual S 223 0.2014 113 0.58 44
IV.FNVD.HHZ. 2020-08-02T17:08:57.30 0.3 negative manual P 274 0.3597 50 -0.17 71
IV.ASQU.HHZ. 2020-08-02T17:08:57.45 1.0 undecidable manual P 161 0.3651 50 -0.11 24
IV.MOCL.EHZ. 2020-08-02T17:08:57.06 0.3 positive manual P 247 0.3453 50 -0.18 71
IV.SFI.EHZ. 2020-08-02T17:08:56.12 1.0 undecidable manual P 146 0.286 50 -0.1 24
IV.RUFI.EHZ. 2020-08-02T17:08:56.41 0.3 undecidable manual P 195 0.3148 50 -0.29 70
IV.RINC.HHZ. 2020-08-02T17:08:55.70 0.3 negative manual P 183 0.2554 50 0.01 75
IV.IMOL.EHZ. 2020-08-02T17:08:55.59 0.1 positive manual P 21 0.2338 110 0.34 94
IV.BRIS.HHZ. 2020-08-02T17:08:55.80 0.6 undecidable manual S 51 0.1322 123 0.02 51
IV.MTRZ.HHZ. 2020-08-02T17:08:55.29 1.0 undecidable manual P 320 0.2221 111 0.28 24
IV.SEI.HHZ. 2020-08-02T17:08:54.56 0.1 positive manual P 245 0.2086 112 -0.18 97
IV.LMD.HHZ. 2020-08-02T17:08:54.66 0.6 undecidable manual S 137 0.0881 134 0.21 49
IV.RONT.HHZ. 2020-08-02T17:08:54.63 0.1 positive manual P 223 0.2014 113 0.05 100
IV.BRIS.HHZ. 2020-08-02T17:08:53.06 0.1 positive manual P 51 0.1322 123 -0.15 99
IV.VISG.HHE. 2020-08-02T17:08:53.12 0.1 undecidable manual P 289 0.143 121 -0.31 96
IV.LMD.HHZ. 2020-08-02T17:08:52.37 0.6 positive manual P 137 0.0881 134 -0.08 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRIS.HHN. ML:2 0.00102 1.36 AML other m 2020-08-02T17:08:56.77
IV.BRIS.HHE. ML:1.9 0.000786 0.24 AML other m 2020-08-02T17:08:56.23
IV.LMD.HHE. ML:1.4 0.00036 1 AML other m 2020-08-02T17:08:58.59
IV.LMD.HHN. ML:1.5 0.0004485 1.52 AML other m 2020-08-02T17:08:59.13
IV.SEI.HHN. ML:1.9 0.0005685 0.56 AML other m 2020-08-02T17:09:00.00
IV.SEI.HHE. ML:1.7 0.000338 1.72 AML other m 2020-08-02T17:09:00.02
IV.RONT.HHE. ML:1.7 0.0003305 0.6 AML other m 2020-08-02T17:09:00.82
IV.SFI.EHE. ML:1.1 6.055E-5 0.72 AML other m 2020-08-02T17:09:01.69
IV.RINC.HHN. ML:1.3 9.555E-5 1.34 AML other m 2020-08-02T17:09:01.80
IV.MTRZ.HHN. ML:1.7 0.000297 0.46 AML other m 2020-08-02T17:09:02.35
IV.RINC.HHE. ML:1.4 0.0001336 0.84 AML other m 2020-08-02T17:09:02.07
IV.RONT.HHN. ML:1.6 0.0002875 0.8 AML other m 2020-08-02T17:09:02.49
IV.MTRZ.HHE. ML:1.6 0.000255 0.48 AML other m 2020-08-02T17:09:03.15
IV.ASQU.HHE. ML:1.2 4.84E-5 0.28 AML other m 2020-08-02T17:09:03.76
IV.FNVD.HHE. ML:1.5 0.0001085 1.28 AML other m 2020-08-02T17:09:03.92
IV.MOCL.EHE. ML:1.2 5.54E-5 0.96 AML other m 2020-08-02T17:09:04.12
IV.FNVD.HHN. ML:1.6 0.000129 0.66 AML other m 2020-08-02T17:09:04.46
IV.MOCL.EHN. ML:1.2 5.605E-5 0.3 AML other m 2020-08-02T17:09:06.50
IV.SFI.EHN. ML:1.2 6.75E-5 0.48 AML other m 2020-08-02T17:09:07.32
IV.ASQU.HHN. ML:1.1 4.31E-5 1.32 AML other m 2020-08-02T17:09:07.32
IV.CSNT.HHE. ML:1.2 1.75E-5 1.5 AML other m 2020-08-02T17:09:17.85
IV.CSNT.HHN. ML:1 1.565E-5 0.76 AML other m 2020-08-02T17:09:18.64
IV.ASSB.HHE. ML:1.8 3.5E-5 0.32 AML other m 2020-08-02T17:09:35.59
IV.ASSB.HHN. ML:1.7 2.595E-5 0.8 AML other m 2020-08-02T17:09:35.75
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