Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 02-08-2019 and time 21:16:34 (UTC) in region 4 km SW Cervia (RA)

A magnitude ML 1.6 earthquake occured in region: 4 km SW Cervia (RA), on

  • 02-08-2019 21:16:34 (UTC)
  • 02-08-2019 23:16:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2290, 12.3210 at 32 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 4 28940 28940
Cesenatico FC 7 25796 54736
Cesena FC 12 96758 151494
Gambettola FC 12 10660 162154
Bellaria-Igea Marina RN 14 19519 181673
Gatteo FC 14 9068 190741
San Mauro Pascoli FC 16 11690 202431
Montiano FC 16 1716 204147
Forlimpopoli FC 16 13290 217437
Savignano sul Rubicone FC 16 17766 235203
Longiano FC 17 7126 242329
Bertinoro FC 17 11059 253388

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km NE of Cesena (96758 inhabitants)
22 Km E of Forlì (117913 inhabitants)
23 Km SE of Ravenna (159116 inhabitants)
27 Km NW of Rimini (147750 inhabitants)
35 Km E of Faenza (58541 inhabitants)
50 Km E of Imola (69797 inhabitants)
59 Km NW of Pesaro (94582 inhabitants)
70 Km NW of Fano (60888 inhabitants)
83 Km E of Bologna (386663 inhabitants)
88 Km SE of Ferrara (133155 inhabitants)
92 Km NE of Arezzo (99543 inhabitants)
99 Km NE of Firenze (382808 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 1.6 2019-08-02
21:16:34		 44.229 12.3213 32 2019-11-13
14:30:57		 Bollettino Sismico Italiano INGV 71296771
Reviewed
Rev100 		ML 1.6 2019-08-02
21:16:35		 44.2057 12.3002 30 2019-08-02
21:31:32		 Sala Sismica INGV-Roma 71123981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-02 21:16:34 ± 0.27
Latitude 44.2290 ± 0.0108
Longitude 12.3213 ± 0.0113
Depth (km) 32 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71296771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 943
Semi-minor axis of confidence ellipse (meter) 926
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 201
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.70956
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 71296771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-09 07:38:52

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 71123981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-02 21:31:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LAV9.HHZ. 2019-08-02T21:17:42.58 3.0 undecidable manual Sn -3.45 0
IV.PTRJ.HHZ. 2019-08-02T21:17:37.49 3.0 undecidable manual Pg 11.72 0
OX.AGOR.HHZ. 2019-08-02T21:17:36.30 3.0 undecidable manual Sn -0.07 0
IV.PIEI.HHZ. 2019-08-02T21:16:59.73 0.3 undecidable manual S 167 78.7656 107 0.47 67
IV.RUFI.EHZ. 2019-08-02T21:16:58.86 0.6 undecidable manual S 236 77.9664 107 -0.18 48
IV.CRE.HHZ. 2019-08-02T21:16:58.50 0.3 undecidable manual S 204 73.8705 108 0.5 67
IV.CAVE.HHZ. 2019-08-02T21:16:57.33 3.0 positive manual P 0.14 0
IV.PARC.HHZ. 2019-08-02T21:16:55.50 0.6 undecidable manual S 186 64.6908 111 -0.21 49
IV.SFI.EHZ. 2019-08-02T21:16:52.17 0.6 undecidable manual S 227 52.2033 116 -0.47 47
IV.LMD.HHZ. 2019-08-02T21:16:52.18 0.6 undecidable manual S 251 51.7038 116 -0.34 48
IV.BRIS.HHZ. 2019-08-02T21:16:50.95 0.6 undecidable manual S 270 44.1225 121 0.22 51
IV.PIEI.HHZ. 2019-08-02T21:16:49.31 0.1 undecidable manual P 167 78.7656 107 0.33 92
IV.CRE.HHZ. 2019-08-02T21:16:48.01 0.1 undecidable manual P 204 73.8705 108 -0.25 95
IV.RUFI.EHZ. 2019-08-02T21:16:48.88 0.1 undecidable manual P 236 77.9664 107 0.02 99
IV.BRSN.EHZ. 2019-08-02T21:16:46.42 0.3 undecidable manual S 288 20.1687 144 0.48 76
IV.PARC.HHZ. 2019-08-02T21:16:46.75 0.1 undecidable manual P 186 64.6908 111 -0.19 98
IV.PE3.EHZ. 2019-08-02T21:16:46.62 0.3 undecidable manual P 167 60.7947 112 0.25 73
IV.LMD.HHZ. 2019-08-02T21:16:44.90 0.1 undecidable manual P 251 51.7038 116 -0.2 100
IV.BRIS.HHZ. 2019-08-02T21:16:44.40 0.1 undecidable manual P 270 44.1225 121 0.33 99
IV.BLLA.EHE. 2019-08-02T21:16:44.75 0.3 undecidable manual S 129 15.1737 152 -0.5 73
IV.SFI.EHZ. 2019-08-02T21:16:44.82 0.1 undecidable manual P 227 52.2033 116 -0.34 97
IV.BRSN.EHZ. 2019-08-02T21:16:41.47 0.3 undecidable manual P 288 20.1687 144 0.17 80
IV.BLLA.EHE. 2019-08-02T21:16:40.72 0.3 undecidable manual P 129 15.1737 152 -0.18 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRSN.EHN. ML:1.9 0.0002902757 0.1792 AML other m 2019-08-02T21:16:47.79
IV.SFI.EHE. ML:1.5 0.00006646471 0.256 AML other m 2019-08-02T21:16:52.58
IV.LMD.HHN. ML:1.8 0.00012394215 0.2688 AML other m 2019-08-02T21:16:53.13
IV.SFI.EHN. ML:1.5 0.00006036282499999999 0.2432 AML other m 2019-08-02T21:16:53.19
IV.LMD.HHE. ML:1.8 0.00013027315 0.1536 AML other m 2019-08-02T21:16:53.75
IV.BRIS.HHN. ML:1.6 0.000082893645 0.3584 AML other m 2019-08-02T21:16:53.77
IV.BRIS.HHE. ML:1.6 0.000092215035 0.3584 AML other m 2019-08-02T21:16:54.75
IV.PARC.HHN. ML:1.2 0.000025500139999999996 0.1536 AML other m 2019-08-02T21:16:57.08
IV.CRE.HHN. ML:1.4 0.000036119475 1.744 AML other m 2019-08-02T21:16:58.03
IV.PIEI.HHN. ML:1.5 0.00003942003 0.192 AML other m 2019-08-02T21:17:01.82
IV.PIEI.HHE. ML:1.7 0.00006335815 0.2048 AML other m 2019-08-02T21:17:02.11
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