Earthquake with magnitude of ML 1.6 on date 27-03-2020 and time 05:46:36 (UTC) in region 1 km NE Tredozio (FC)

A magnitude ML 1.6 earthquake occured in region: 1 km NE Tredozio (FC), on

  • 27-03-2020 05:46:36 (UTC)
  • 27-03-2020 06:46:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.09, 11.75 at 26 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
Tredozio FC 1 1212 1212
Portico e San Benedetto FC 7 756 1968
Rocca San Casciano FC 8 1910 3878
Modigliana FC 9 4560 8438
Marradi FI 11 3139 11577
Dovadola FC 12 1653 13230
Premilcuore FC 12 799 14029
Brisighella RA 15 7639 21668
Palazzuolo sul Senio FI 16 1154 22822
Galeata FC 16 2516 25338
Civitella di Romagna FC 18 3786 29124
Casola Valsenio RA 18 2617 31741
Predappio FC 19 6346 38087
Castrocaro Terme e Terra del Sole FC 19 6426 44513
Santa Sofia FC 20 4136 48649

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SW of Faenza (58541 inhabitants)
28 Km SW of Forlì (117913 inhabitants)
30 Km S of Imola (69797 inhabitants)
40 Km W of Cesena (96758 inhabitants)
52 Km SW of Ravenna (159116 inhabitants)
53 Km NE of Firenze (382808 inhabitants)
56 Km SE of Bologna (386663 inhabitants)
57 Km E of Prato (191150 inhabitants)
58 Km NE of Scandicci (50609 inhabitants)
66 Km W of Rimini (147750 inhabitants)
68 Km E of Pistoia (90315 inhabitants)
70 Km N of Arezzo (99543 inhabitants)
84 Km S of Ferrara (133155 inhabitants)
90 Km SE of Modena (184973 inhabitants)
92 Km NE of Siena (53903 inhabitants)
95 Km W of Pesaro (94582 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 1.6 2020-03-27
05:46:36
44.09 11.75 26 2020-03-27
05:58:33
Sala Sismica INGV-Roma 77608751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-27 05:46:36 ± 0.37
Latitude 44.09 ± 0.01
Longitude 11.75 ± 0.02
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77608751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1377
Semi-minor axis of confidence ellipse (meter) 921
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 301
Circular confidence region, given by single value of horizontal uncertainty (meter) 1380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32376
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 13
Type of magnitude ML
Reference to an origin 77608751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-27 05:58:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2020-03-27T05:48:06.18 3.0 negative manual Pn -2.34 0
IT.LRNO.HNZ. 2020-03-27T05:47:49.53 3.0 undecidable manual Sg 11.07 0
IV.SARZ.HHZ. 2020-03-27T05:47:45.10 3.0 undecidable manual Sn 3.93 0
IV.NOCI.HHZ. 2020-03-27T05:47:37.08 3.0 undecidable manual Pg 10.15 0
IV.SBPO.HNZ. 2020-03-27T05:47:11.74 3.0 undecidable manual Sn -1.16 0
IV.ROSPO.HHZ. 2020-03-27T05:47:06.39 3.0 negative manual Pg 7.44 0
IV.FIR.HHZ. 2020-03-27T05:47:06.10 3.0 undecidable manual Sg 0.57 0
IV.SARZ.HHZ. 2020-03-27T05:47:05.44 3.0 undecidable manual Pn 0.45 0
IV.VAGA.HHZ. 2020-03-27T05:46:59.07 3.0 positive manual Pn -6.21 0
IV.MC2.EHZ. 2020-03-27T05:46:58.53 3.0 undecidable manual Sn -7.73 0
IV.MTRZ.HHZ. 2020-03-27T05:46:51.76 0.3 undecidable manual S 315 0.3238 120 1.84 34
IV.SERM.EHZ. 2020-03-27T05:46:49.31 3.0 negative manual Pn 2.98 0
IV.RMP.HHZ. 2020-03-27T05:46:49.09 3.0 undecidable manual Pn -9.12 0
IV.RUFI.EHE. 2020-03-27T05:46:49.35 0.1 undecidable manual S 215 0.3013 122 0.01 100
IV.SEI.HHZ. 2020-03-27T05:46:49.13 0.6 undecidable manual S 264 0.2815 124 0.28 48
IV.RONT.HHZ. 2020-03-27T05:46:48.06 0.3 undecidable manual S 248 0.2446 129 0.1 75
IV.CADA.HNZ. 2020-03-27T05:46:48.11 3.0 undecidable manual Pg 4.04 0
IV.VISG.HHZ. 2020-03-27T05:46:47.55 0.1 undecidable manual S 295 0.2473 128 -0.48 90
IV.SFI.EHZ. 2020-03-27T05:46:47.60 0.3 undecidable manual S 158 0.1943 136 0.73 61
IV.RINC.HHN. 2020-03-27T05:46:47.89 0.3 undecidable manual S 207 0.2239 132 0.4 70
IV.BRIS.HHZ. 2020-03-27T05:46:46.13 0.1 undecidable manual S 6 0.1394 146 0.29 97
IV.RIBO.EHZ.01 2020-03-27T05:46:46.99 3.0 negative manual Pn -4.48 0
IV.MTRZ.HHZ. 2020-03-27T05:46:44.63 0.1 undecidable manual P 315 0.3238 120 0.29 94
IV.RUFI.EHE. 2020-03-27T05:46:44.03 0.3 undecidable manual P 215 0.3013 122 0.02 74
IV.LMD.HHZ. 2020-03-27T05:46:44.41 0.1 undecidable manual S 254 0.0306 172 -0.25 100
IV.ASQU.HHZ. 2020-03-27T05:46:43.26 3.0 undecidable manual P 0
IV.SEI.HHZ. 2020-03-27T05:46:43.58 0.3 undecidable manual P 264 0.2815 124 -0.14 73
IV.RINC.HHN. 2020-03-27T05:46:42.94 0.3 undecidable manual P 207 0.2239 132 0 76
IV.VISG.HHZ. 2020-03-27T05:46:42.70 0.1 undecidable manual P 295 0.2473 128 -0.55 89
IV.SFI.EHZ. 2020-03-27T05:46:42.69 0.1 undecidable manual P 158 0.1943 136 0.11 98
IV.NRCA.HNZ. 2020-03-27T05:46:42.04 3.0 undecidable manual P -4.09 0
IV.RONT.HHZ. 2020-03-27T05:46:42.89 0.3 undecidable manual P 248 0.2446 129 -0.32 71
IV.BRIS.HHZ. 2020-03-27T05:46:41.64 0.1 undecidable manual P 6 0.1394 146 -0.34 97
IV.LMD.HHZ. 2020-03-27T05:46:40.76 0.1 undecidable manual P 254 0.0306 172 -0.54 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHN. ML:1.5 0.0001985 0.5 AML other m 2020-03-27T05:46:44.78
IV.LMD.HHE. ML:1.5 0.0001835 0.46 AML other m 2020-03-27T05:46:44.56
IV.BRIS.HHE. ML:1.7 0.000244 0.64 AML other m 2020-03-27T05:46:46.52
IV.BRIS.HHN. ML:1.7 0.0002295 0.42 AML other m 2020-03-27T05:46:46.27
IV.SFI.EHN. ML:1.4 0.00012 0.52 AML other m 2020-03-27T05:46:47.62
IV.VISG.HHE. ML:1.4 8.885E-5 0.68 AML other m 2020-03-27T05:46:47.97
IV.RONT.HHE. ML:1.7 0.0001765 0.42 AML other m 2020-03-27T05:46:48.30
IV.VISG.HHN. ML:1.4 9.87E-5 1.02 AML other m 2020-03-27T05:46:48.84
IV.SFI.EHE. ML:1.4 0.0001255 0.32 AML other m 2020-03-27T05:46:48.49
IV.SEI.HHE. ML:0 0.0001052 0.18 AML other m 2020-03-27T05:46:49.33
IV.SEI.HHN. ML:0 0.0002395 0.56 AML other m 2020-03-27T05:46:49.77
IV.RONT.HHN. ML:1.7 0.0001975 1.58 AML other m 2020-03-27T05:46:49.94
IV.SFI.HNE. ML:1.5 0.000149447 3.328 AML other m 2020-03-27T05:46:49.99
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