Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 22-08-2020 and time 00:11:24 (Italy) in region 8 km W Cervia (RA)

A magnitude ML 1.9 earthquake occured in region: 8 km W Cervia (RA), on

  • 21-08-2020 22:11:24 (UTC)
  • 22-08-2020 00:11:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2320, 12.2540 at 26 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 8 28940 28940
Cesena FC 11 96758 125698
Forlimpopoli FC 11 13290 138988
Cesenatico FC 12 25796 164784
Bertinoro FC 13 11059 175843
Gambettola FC 14 10660 186503
Montiano FC 17 1716 188219
Forlì FC 17 117913 306132
Gatteo FC 17 9068 315200
Longiano FC 18 7126 322326
Bellaria-Igea Marina RN 19 19519 341845
San Mauro Pascoli FC 19 11690 353535
Meldola FC 19 9970 363505
Savignano sul Rubicone FC 19 17766 381271

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km N of Cesena (96758 inhabitants)
17 Km E of Forlì (117913 inhabitants)
21 Km S of Ravenna (159116 inhabitants)
30 Km E of Faenza (58541 inhabitants)
31 Km NW of Rimini (147750 inhabitants)
45 Km E of Imola (69797 inhabitants)
64 Km NW of Pesaro (94582 inhabitants)
75 Km NW of Fano (60888 inhabitants)
78 Km E of Bologna (386663 inhabitants)
84 Km SE of Ferrara (133155 inhabitants)
90 Km NE of Arezzo (99543 inhabitants)
95 Km NE of Firenze (382808 inhabitants)
100 Km SE of Rovigo (51867 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 1.9 2020-08-21
22:11:24		 44.2322 12.2542 26 2020-11-19
12:36:59		 Bollettino Sismico Italiano INGV 82469841
Reviewed
Rev100 		ML 1.9 2020-08-21
22:11:23		 44.2628 12.2735 30 2020-08-21
22:20:45		 Sala Sismica INGV-Roma 82214371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-21 22:11:24 ± 0.17
Latitude 44.2322 ± 0.0099
Longitude 12.2542 ± 0.0100
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82469841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 971
Semi-minor axis of confidence ellipse (meter) 638
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 970.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.20149
Number of stations at which the event was observed 51
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 82469841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-30 13:28:36

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 82214371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-21 22:20:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MONC.HHZ. 2020-08-21T22:13:11.62 3.0 undecidable manual Sg 17.110001 0
IV.MTMR.EHZ. 2020-08-21T22:13:06.36 3.0 undecidable manual Sn -3.51 0
IV.ROSPO.HHZ. 2020-08-21T22:12:54.60 3.0 undecidable manual Sg 10.88 0
CR.STON.BHZ. 2020-08-21T22:12:40.90 3.0 positive manual Pg 12.04 0
IV.VULT.HHZ. 2020-08-21T22:12:38.65 3.0 negative manual Pg 11.61 0
IV.MCRV.HHZ. 2020-08-21T22:12:37.74 3.0 positive manual Pg 11.42 0
GU.BLANC.HHZ. 2020-08-21T22:12:31.92 3.0 undecidable manual Pn 4.17 0
IV.CMPR.HHZ. 2020-08-21T22:12:29.47 3.0 undecidable manual Pn -3.04 0
IV.MAON.HHZ. 2020-08-21T22:12:22.88 3.0 undecidable manual Sn 0.43 0
IV.QLNO.HHZ. 2020-08-21T22:12:20.38 3.0 positive manual Pg 10.87 0
IV.ROSPO.HHZ. 2020-08-21T22:12:18.57 3.0 undecidable manual Pg 9.44 0
IT.PLTA.HNZ. 2020-08-21T22:12:11.73 3.0 negative manual Pn 0.02 0
IV.NDIM.HNZ. 2020-08-21T22:12:06.76 3.0 undecidable manual S 1.11 0
IV.MAON.HHZ. 2020-08-21T22:12:00.83 3.0 undecidable manual Pg 3.65 0
IV.STAL.HHZ. 2020-08-21T22:11:58.72 3.0 undecidable manual Pn -2.06 0
IV.CTI.HHZ. 2020-08-21T22:11:56.01 3.0 undecidable manual Pn -2.01 0
IV.MC2.EHZ. 2020-08-21T22:11:53.73 3.0 negative manual P 2.91 0
IV.PII.HHZ. 2020-08-21T22:11:50.76 3.0 positive manual P 1.79 0
IV.FIR.HHZ. 2020-08-21T22:11:49.43 3.0 undecidable manual S -3.65 0
IV.FDMO.HHZ. 2020-08-21T22:11:49.64 3.0 negative manual P 0.82 0
IV.ZOVE.EHZ. 2020-08-21T22:11:48.49 3.0 positive manual P -2.15 0
IV.APEC.HHZ. 2020-08-21T22:11:48.00 0.6 undecidable manual S 170 75.8685 103 0.64 39
GU.GSCL.HHZ. 2020-08-21T22:11:47.57 3.0 undecidable manual P 0.02 0
IV.TEOL.HHE. 2020-08-21T22:11:47.36 1.0 undecidable manual P 340 133.3665 54 1.33 13
IV.RONT.HHZ. 2020-08-21T22:11:46.93 1.0 undecidable manual S 248 70.5738 104 0.96 17
IV.RINC.HHZ. 2020-08-21T22:11:45.00 0.6 undecidable manual S 234 64.2912 106 0.65 40
IV.PE3.EHZ. 2020-08-21T22:11:45.40 0.3 undecidable manual S 162 62.5929 106 1.49 40
IV.PARC.HHZ. 2020-08-21T22:11:44.50 0.6 undecidable manual S 181 64.7907 106 0.03 47
IV.ASQU.HHZ. 2020-08-21T22:11:43.00 0.6 undecidable manual S 218 60.8946 107 -0.49 44
IV.PESA.HHZ. 2020-08-21T22:11:43.62 0.6 undecidable manual S 124 56.7987 108 1.18 33
IV.ARVD.HHZ. 2020-08-21T22:11:41.10 0.6 undecidable manual P 146 98.2239 100 0.17 44
IV.FIU.EHZ. 2020-08-21T22:11:41.46 3.0 undecidable manual P 0
IV.SSFR.HHZ. 2020-08-21T22:11:41.22 0.6 undecidable manual P 154 97.9242 100 0.34 42
IV.CAFI.HNN. 2020-08-21T22:11:41.33 1.0 undecidable manual P 193 102.8193 99 -0.29 21
IV.ATFO.HHZ. 2020-08-21T22:11:41.00 0.1 undecidable manual P 165 99.3228 100 -0.1 88
IV.ATVO.HHZ. 2020-08-21T22:11:40.38 0.1 undecidable manual P 173 95.1381 100 -0.07 89
IV.ATPI.EHZ. 2020-08-21T22:11:39.56 0.6 undecidable manual P 172 87.5457 101 0.26 43
IV.SFI.EHZ. 2020-08-21T22:11:39.80 0.3 undecidable manual S 222 48.7179 112 -0.62 66
IV.BRIS.HHZ. 2020-08-21T22:11:38.40 0.6 undecidable manual S 269 38.7279 118 0.4 46
IV.PIEI.HHZ. 2020-08-21T22:11:37.96 0.1 undecidable manual P 164 80.4639 102 -0.28 88
IV.SSP9.EHZ. 2020-08-21T22:11:37.30 1.0 undecidable manual P 188 73.6707 104 0.07 23
IV.CRTC.HNE. 2020-08-21T22:11:37.61 0.6 undecidable manual P 135 71.8725 104 0.66 40
IV.MPAG.EHZ. 2020-08-21T22:11:37.81 0.1 undecidable manual P 149 78.1662 103 -0.08 92
IV.SEI.HHZ. 2020-08-21T22:11:37.36 0.6 undecidable manual P 255 73.9704 104 0.09 46
IV.APEC.HHZ. 2020-08-21T22:11:37.10 1.0 undecidable manual P 170 75.8685 103 -0.46 21
IV.RUFI.EHZ. 2020-08-21T22:11:36.92 0.6 undecidable manual P 234 73.7706 104 -0.31 45
IV.RONT.HHZ. 2020-08-21T22:11:36.90 0.6 undecidable manual P 248 70.5738 104 0.14 46
IV.NARO.HHZ. 2020-08-21T22:11:36.97 0.6 undecidable manual P 159 73.6707 104 -0.26 45
IV.MTRZ.HNN. 2020-08-21T22:11:36.80 0.6 undecidable manual P 278 66.4779 105 0.65 41
IV.PE3.EHZ. 2020-08-21T22:11:35.41 0.3 undecidable manual P 162 62.5929 106 -0.16 70
IV.VISG.HHZ. 2020-08-21T22:11:35.90 0.6 undecidable manual P 266 65.3901 106 -0.09 47
IV.PARC.HHZ. 2020-08-21T22:11:35.22 0.1 undecidable manual P 181 64.7907 106 -0.67 81
IV.RINC.HHZ. 2020-08-21T22:11:35.59 0.3 undecidable manual P 234 64.2912 106 -0.23 69
IV.PESA.HHZ. 2020-08-21T22:11:34.71 0.3 undecidable manual P 124 56.7987 108 -0.01 72
IV.ASQU.HHZ. 2020-08-21T22:11:34.86 0.6 undecidable manual P 218 60.8946 107 -0.47 44
IV.BRSN.EHZ. 2020-08-21T22:11:33.60 0.6 undecidable manual S 293 14.9739 147 0.42 48
IV.IMOL.EHZ. 2020-08-21T22:11:33.65 0.3 undecidable manual P 289 43.0236 115 0.91 57
IV.SFI.EHZ. 2020-08-21T22:11:33.02 0.3 undecidable manual P 222 48.7179 112 -0.53 67
IV.CPGN.EHZ. 2020-08-21T22:11:33.55 0.1 undecidable manual P 174 48.1185 112 0.08 97
IV.BLLA.EHZ. 2020-08-21T22:11:33.80 0.6 undecidable manual S 120 19.869 138 -0.17 50
IV.BRIS.HHZ. 2020-08-21T22:11:32.12 0.1 undecidable manual P 269 38.7279 118 -0.04 100
IV.RSM2.HHZ. 2020-08-21T22:11:31.72 0.1 undecidable manual P 155 36.0417 120 -0.07 100
IV.BLLA.EHZ. 2020-08-21T22:11:29.23 0.6 undecidable manual P 120 19.869 138 -0.6 44
IV.BRSN.EHZ. 2020-08-21T22:11:28.80 0.1 undecidable manual P 293 14.9739 147 -0.57 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PESA.HHN. ML:0.0 0.0004662715 0.3328 AML other m 2020-08-21T22:11:44.97
IV.PESA.HHE. ML:0.0 0.0005397692 0.32 AML other m 2020-08-21T22:11:44.92
IV.BRSN.HNE. ML:2.6 0.002113277 0.2304 AML other m 2020-08-21T22:11:36.17
IV.BRSN.HNN. ML:2.6 0.0020064345000000003 0.4096 AML other m 2020-08-21T22:11:34.87
IV.BRSN.EHN. ML:2.6 0.001973578 0.384 AML other m 2020-08-21T22:11:34.87
IV.BRSN.EHE. ML:2.6 0.0020161544999999998 0.2304 AML other m 2020-08-21T22:11:36.29
IV.BLLA.EHE. ML:2.3 0.0010126930999999999 0.4224 AML other m 2020-08-21T22:11:34.76
IV.BLLA.EHN. ML:2.3 0.00088409815 0.4864 AML other m 2020-08-21T22:11:35.24
IV.RSM2.HHN. ML:1.8 0.00017833300000000003 0.3968 AML other m 2020-08-21T22:11:42.99
IV.RSM2.HHE. ML:1.7 0.0001611581 0.4224 AML other m 2020-08-21T22:11:41.09
IV.BRIS.HHE. ML:1.8 0.0001713856 0.2944 AML other m 2020-08-21T22:11:39.76
IV.BRIS.HHN. ML:1.8 0.00019883305 0.2944 AML other m 2020-08-21T22:11:39.87
IV.SFI.HNE. ML:1.9 0.00019790605 0.2816 AML other m 2020-08-21T22:11:41.54
IV.SFI.EHN. ML:1.7 0.000121649145 0.1664 AML other m 2020-08-21T22:11:41.50
IV.SFI.EHE. ML:1.8 0.0001616505 0.128 AML other m 2020-08-21T22:11:41.54
IV.SFI.HNN. ML:1.7 0.000118860845 0.32 AML other m 2020-08-21T22:11:42.68
IV.CPGN.EHE. ML:1.7 0.000119915255 0.3072 AML other m 2020-08-21T22:11:42.94
IV.CPGN.EHN. ML:1.9 0.0001875039 0.512 AML other m 2020-08-21T22:11:42.61
IV.CPGN.HNN. ML:2.3 0.00050515295 0.8576 AML other m 2020-08-21T22:11:42.18
IV.ASQU.HHN. ML:1.8 0.00010860888 0.1792 AML other m 2020-08-21T22:11:45.67
IV.ASQU.HHE. ML:1.7 0.00008283474499999999 0.2432 AML other m 2020-08-21T22:11:45.66
IV.PARC.HHE. ML:1.6 0.000060327755 0.1792 AML other m 2020-08-21T22:11:46.28
IV.PARC.HHN. ML:1.6 0.00006958212 0.192 AML other m 2020-08-21T22:11:45.56
IV.PE3.EHE. ML:2.2 0.00030357215 0.3968 AML other m 2020-08-21T22:11:50.50
IV.PE3.EHN. ML:2.3 0.00037374775 0.256 AML other m 2020-08-21T22:11:47.71
IV.RINC.HHE. ML:1.9 0.00014537844999999998 0.384 AML other m 2020-08-21T22:11:46.06
IV.RINC.HHN. ML:1.7 0.000094140545 0.4224 AML other m 2020-08-21T22:11:48.41
IV.VISG.HHN. ML:1.6 0.000072119445 0.2304 AML other m 2020-08-21T22:11:48.40
IV.VISG.HHE. ML:1.6 0.00007726159499999999 0.32 AML other m 2020-08-21T22:11:50.02
IV.RONT.HHE. ML:2.1 0.00018861885 0.2944 AML other m 2020-08-21T22:11:48.86
IV.RONT.HHN. ML:2.1 0.00019306814999999999 0.2048 AML other m 2020-08-21T22:11:49.80
IV.RUFI.EHN. ML:1.5 0.00004492037 0.3584 AML other m 2020-08-21T22:11:51.08
IV.RUFI.EHE. ML:1.5 0.000048624535 0.2048 AML other m 2020-08-21T22:11:48.38
IV.NARO.HHN. ML:1.6 0.000053762105000000005 0.2816 AML other m 2020-08-21T22:11:52.61
IV.NARO.HHE. ML:1.4 0.00003964117 0.2048 AML other m 2020-08-21T22:11:53.72
IV.APEC.HHE. ML:1.8 0.00007861058500000002 0.256 AML other m 2020-08-21T22:11:53.04
IV.APEC.HHN. ML:1.8 0.00008310089000000001 0.256 AML other m 2020-08-21T22:11:50.25
IV.SSP9.EHN. ML:1.5 0.000048389260000000005 0.6784 AML other m 2020-08-21T22:11:56.20
IV.SEI.HHN. ML:2.0 0.00016209755000000001 0.5248 AML other m 2020-08-21T22:11:50.82
IV.SEI.HHE. ML:1.9 0.0001171026 0.3328 AML other m 2020-08-21T22:11:52.16
IV.MPAG.EHE. ML:1.7 0.000063159755 0.2048 AML other m 2020-08-21T22:11:54.81
IV.MPAG.EHN. ML:1.8 0.00007963085 0.3584 AML other m 2020-08-21T22:11:51.54
IV.PIEI.HHN. ML:1.8 0.000078135905 0.2048 AML other m 2020-08-21T22:11:51.42
IV.PIEI.HHE. ML:2.0 0.000116827135 0.2048 AML other m 2020-08-21T22:11:50.55
IV.ATPI.EHN. ML:1.6 0.0000447786 0.4096 AML other m 2020-08-21T22:11:58.71
IV.ATPI.EHE. ML:1.5 0.00003749354 0.3968 AML other m 2020-08-21T22:12:01.95
IV.ATVO.HHE. ML:1.9 0.00007265624500000001 0.576 AML other m 2020-08-21T22:12:03.19
IV.ATVO.HHN. ML:1.8 0.000071159455 0.384 AML other m 2020-08-21T22:12:00.42
IV.ATFO.HHN. ML:1.7 0.000045856995 0.4096 AML other m 2020-08-21T22:11:56.83
IV.ATFO.HHE. ML:1.8 0.00005975493 0.5632 AML other m 2020-08-21T22:11:59.46
IV.ARVD.HHN. ML:1.7 0.000047175525 0.2688 AML other m 2020-08-21T22:11:58.35
IV.ARVD.HHE. ML:1.6 0.00004009981 0.2176 AML other m 2020-08-21T22:11:57.41
IV.SSFR.HNN. ML:2.4 0.00021991054999999997 0.32 AML other m 2020-08-21T22:11:57.88
IV.SSFR.HNE. ML:2.3 0.0002049052 0.2176 AML other m 2020-08-21T22:12:00.64
IV.SSFR.HHN. ML:2.1 0.00013653206 0.2816 AML other m 2020-08-21T22:11:57.22
IV.SSFR.HHE. ML:2.3 0.00020636335 0.2176 AML other m 2020-08-21T22:12:00.63
IV.ZOVE.EHE. ML:2.1 0.00006353952 0.3584 AML other m 2020-08-21T22:12:10.94
IV.ZOVE.HNN. ML:2.3 0.00009790784999999999 0.3456 AML other m 2020-08-21T22:12:11.44
IV.ZOVE.HNE. ML:2.2 0.00007822204 0.6016 AML other m 2020-08-21T22:12:07.48
IV.ZOVE.EHN. ML:2.3 0.000096877885 0.3456 AML other m 2020-08-21T22:12:11.61
IV.FDMO.HHN. ML:1.8 0.000028219445000000003 0.384 AML other m 2020-08-21T22:12:14.07
IV.FDMO.HHE. ML:1.8 0.000029123395000000003 0.32 AML other m 2020-08-21T22:12:18.06
IV.PII.HHE. ML:1.8 0.000029244480000000003 0.32 AML other m 2020-08-21T22:12:10.94
IV.PII.HHN. ML:1.9 0.000040987755 0.2816 AML other m 2020-08-21T22:12:10.28
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