Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 16-03-2020 and time 05:30:34 (Italy) in region 13 km W Cervia (RA)

A magnitude ML 1.5 earthquake occured in region: 13 km W Cervia (RA), on

  • 16-03-2020 04:30:34 (UTC)
  • 16-03-2020 05:30:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2930, 12.1980 at 20 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cervia RA 13 28940 28940
Forlimpopoli FC 13 13290 42230
Ravenna RA 14 159116 201346
Forlì FC 15 117913 319259
Russi RA 16 12247 331506
Bertinoro FC 17 11059 342565
Cesena FC 18 96758 439323
Cesenatico FC 19 25796 465119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km S of Ravenna (159116 inhabitants)
15 Km NE of Forlì (117913 inhabitants)
18 Km N of Cesena (96758 inhabitants)
25 Km E of Faenza (58541 inhabitants)
39 Km E of Imola (69797 inhabitants)
39 Km NW of Rimini (147750 inhabitants)
71 Km NW of Pesaro (94582 inhabitants)
72 Km E of Bologna (386663 inhabitants)
76 Km SE of Ferrara (133155 inhabitants)
83 Km NW of Fano (60888 inhabitants)
92 Km SE of Rovigo (51867 inhabitants)
95 Km NE of Firenze (382808 inhabitants)
95 Km N of Arezzo (99543 inhabitants)
99 Km E of Prato (191150 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.5 2020-03-16
04:30:34		 44.2933 12.1977 20 2020-07-18
21:08:26		 Bollettino Sismico Italiano INGV 77325171
Reviewed
Rev100 		ML 1.5 2020-03-16
04:30:34		 44.2787 12.1983 20 2020-03-16
04:37:29		 Sala Sismica INGV-Roma 77295141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-16 04:30:34 ± 0.21
Latitude 44.2933 ± 0.0081
Longitude 12.1977 ± 0.0138
Depth (km) 20 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77325171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1041
Semi-minor axis of confidence ellipse (meter) 430
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 255
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.69697
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 77295141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-16 04:37:29

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 19
Type of magnitude ML
Reference to an origin 77325171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-17 15:23:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRE.HHZ. 2020-03-16T04:30:57.90 0.6 undecidable manual S 195 77.367 98 0.59 39
IV.PARC.HHE. 2020-03-16T04:30:56.40 1.0 undecidable manual S 177 71.5728 99 0.61 20
IV.SEI.HHZ. 2020-03-16T04:30:56.30 0.6 undecidable manual S 249 71.8725 99 0.44 42
IV.RUFI.EHE. 2020-03-16T04:30:56.80 0.6 undecidable manual S 228 74.5698 98 0.22 44
IV.RONT.HHN. 2020-03-16T04:30:55.60 1.0 undecidable manual S 242 69.375 99 0.4 21
IV.RINC.HHZ. 2020-03-16T04:30:54.10 0.3 undecidable manual S 226 65.1903 100 -0.01 70
IV.ASQU.HHZ. 2020-03-16T04:30:53.50 0.3 undecidable manual S 211 63.9915 100 -0.29 67
IV.VISG.HHZ. 2020-03-16T04:30:53.80 0.6 undecidable manual S 259 61.7937 101 0.6 41
IV.SFI.EHZ. 2020-03-16T04:30:49.80 0.6 undecidable manual S 213 51.4152 103 -0.69 41
IV.LMD.HHZ. 2020-03-16T04:30:48.80 0.6 undecidable manual S 239 45.8208 105 -0.24 46
IV.PARC.HHE. 2020-03-16T04:30:47.09 0.3 undecidable manual P 177 71.5728 99 0.49 62
IV.CRE.HHZ. 2020-03-16T04:30:47.64 0.1 undecidable manual P 195 77.367 98 0.16 88
IV.BRIS.HHZ. 2020-03-16T04:30:46.70 0.3 undecidable manual S 258 35.0427 111 0.37 69
IV.RUFI.EHE. 2020-03-16T04:30:46.85 0.1 undecidable manual P 228 74.5698 98 -0.2 88
IV.SEI.HHZ. 2020-03-16T04:30:46.10 1.0 undecidable manual P 249 71.8725 99 -0.53 20
IV.MTRZ.HNN. 2020-03-16T04:30:45.96 0.6 undecidable manual P 272 61.3941 101 0.91 36
IV.RINC.HHZ. 2020-03-16T04:30:45.86 0.3 undecidable manual P 226 65.1903 100 0.23 67
IV.RONT.HHN. 2020-03-16T04:30:45.95 0.3 undecidable manual P 242 69.375 99 -0.31 65
IV.ASQU.HHZ. 2020-03-16T04:30:45.36 0.1 undecidable manual P 211 63.9915 100 -0.08 92
IV.VISG.HHZ. 2020-03-16T04:30:44.80 0.3 undecidable manual P 259 61.7937 101 -0.3 66
IV.SFI.EHZ. 2020-03-16T04:30:43.20 0.1 undecidable manual P 213 51.4152 103 -0.34 90
IV.LMD.HHZ. 2020-03-16T04:30:42.17 0.1 undecidable manual P 239 45.8208 105 -0.53 86
IV.BRSN.EHZ. 2020-03-16T04:30:41.10 0.3 undecidable manual S 264 9.3795 151 0.15 76
IV.IMOL.EHZ. 2020-03-16T04:30:41.56 0.1 undecidable manual P 282 36.8298 110 0.17 96
IV.BRIS.HHZ. 2020-03-16T04:30:40.98 0.1 undecidable manual P 258 35.0427 111 -0.15 95
IV.BRSN.EHZ. 2020-03-16T04:30:37.89 0.1 undecidable manual P 264 9.3795 151 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRSN.EHE. ML:0.0 0.00049745825 0.1824 AML other m 2020-03-16T04:30:41.45
IV.BRSN.HNE. ML:0.0 0.0005314076 0.192 AML other m 2020-03-16T04:30:41.44
IV.BRSN.EHN. ML:0.0 0.0006943448 0.3424 AML other m 2020-03-16T04:30:42.33
IV.BRSN.HNN. ML:0.0 0.0007348652 0.3328 AML other m 2020-03-16T04:30:42.32
IV.BRIS.HHN. ML:0.0 0.000082968945 0.24 AML other m 2020-03-16T04:30:47.39
IV.BRIS.HHE. ML:0.0 0.00008179283 0.2208 AML other m 2020-03-16T04:30:47.46
IV.LMD.HHE. ML:0.0 0.00009126675 0.2016 AML other m 2020-03-16T04:30:49.36
IV.LMD.HHN. ML:0.0 0.000068268975 0.2784 AML other m 2020-03-16T04:30:50.68
IV.SFI.EHE. ML:0.0 0.000064072955 0.1792 AML other m 2020-03-16T04:30:51.69
IV.SFI.EHN. ML:0.0 0.00005172429 0.2208 AML other m 2020-03-16T04:30:51.48
IV.ASQU.HHE. ML:0.0 0.00011927505 0.32 AML other m 2020-03-16T04:30:54.64
IV.ASQU.HHN. ML:0.0 0.000056081605 0.2816 AML other m 2020-03-16T04:30:55.77
IV.VISG.HHE. ML:0.0 0.00004529929 0.2976 AML other m 2020-03-16T04:30:55.51
IV.VISG.HHN. ML:0.0 0.000058781905 0.2208 AML other m 2020-03-16T04:30:55.46
IV.SFI.HNE. ML:1.6 0.00009620743499999999 0.272 AML other m 2020-03-16T04:30:51.27
IV.RINC.HHE. ML:1.6 0.000073440785 0.4 AML other m 2020-03-16T04:30:54.77
IV.RINC.HHN. ML:1.2 0.00002825393 0.2592 AML other m 2020-03-16T04:30:56.47
IV.CRE.HHE. ML:1.0 0.000016496474 0.2592 AML other m 2020-03-16T04:31:01.00
IV.CRE.HHN. ML:1.5 0.000041812055 0.2176 AML other m 2020-03-16T04:30:59.25
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download