Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 16-02-2021 and time 19:18:27 (Italy) in region Costa Romagnola meridionale (Rimini, Forli Cesena)

A magnitude ML 1.7 earthquake occured in region: Costa Romagnola meridionale (Rimini, Forli Cesena), on

  • 16-02-2021 18:18:27 (UTC)
  • 16-02-2021 19:18:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9080, 12.4650 at 44 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sassofeltrio PU 4 1388 1388
Monte Grimano Terme PU 5 1136 2524
Mercatino Conca PU 5 1086 3610
Montescudo - Monte Colombo RN 7 6779 10389
Monte Cerignone PU 9 669 11058
Verucchio RN 9 10078 21136
Gemmano RN 10 1158 22294
San Leo RN 10 2972 25266
Poggio Torriana RN 11 5135 30401
Montecopiolo PU 11 1128 31529
Macerata Feltria PU 12 1990 33519
Montefiore Conca RN 12 2269 35788
Tavoleto PU 12 867 36655
Coriano RN 13 10502 47157
Maiolo RN 13 848 48005
Auditore PU 13 1566 49571
San Clemente RN 13 5577 55148
Pietrarubbia PU 13 660 55808
Novafeltria RN 14 7164 62972
Sassocorvaro PU 14 3504 66476
Talamello RN 14 1104 67580
Morciano di Romagna RN 15 7045 74625
Borghi FC 16 2843 77468
Saludecio RN 17 3120 80588
Sogliano al Rubicone FC 17 3195 83783
Montecalvo in Foglia PU 17 2718 86501
Santarcangelo di Romagna RN 17 22089 108590
Carpegna PU 17 1674 110264
Frontino PU 17 293 110557
Mondaino RN 18 1394 111951
Riccione RN 18 34965 146916
Pennabilli RN 19 2869 149785
Montegridolfo RN 19 1012 150797
Rimini RN 19 147750 298547
Roncofreddo FC 19 3386 301933
Misano Adriatico RN 20 13014 314947
Lunano PU 20 1527 316474

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SW of Rimini (147750 inhabitants)
31 Km SE of Cesena (96758 inhabitants)
36 Km W of Pesaro (94582 inhabitants)
45 Km W of Fano (60888 inhabitants)
49 Km SE of Forlì (117913 inhabitants)
61 Km SE of Ravenna (159116 inhabitants)
63 Km SE of Faenza (58541 inhabitants)
68 Km NE of Arezzo (99543 inhabitants)
78 Km SE of Imola (69797 inhabitants)
89 Km N of Perugia (166134 inhabitants)
91 Km W of Ancona (100861 inhabitants)
98 Km E 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 1.7 2021-02-16
18:18:27		 43.9085 12.4652 44 2021-07-12
16:55:00		 Bollettino Sismico Italiano INGV 87621231
Reviewed
Rev100 		ML 1.8 2021-02-16
18:18:26		 43.9108 12.4485 45 2021-02-16
18:32:59		 Sala Sismica INGV-Roma 87217421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-16 18:18:27 ± 0.15
Latitude 43.9085 ± 0.0081
Longitude 12.4652 ± 0.0112
Depth (km) 44 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87621231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1064
Semi-minor axis of confidence ellipse (meter) 152
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 1060.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 72
Number of defining phases 64
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.02792
Number of stations at which the event was observed 45
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 87621231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-19 12:00:15

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 87217421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-16 18:32:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SGTA.HNZ. 2021-02-16T18:19:54.35 3.0 undecidable manual Sn -5.71 0
CR.ZAG.BHZ. 2021-02-16T18:19:50.68 3.0 undecidable manual Sn -1.54 0
IV.PCN.EHZ. 2021-02-16T18:19:33.94 3.0 undecidable manual Sn 3.54 0
IV.MSSA.HHZ. 2021-02-16T18:19:33.92 3.0 undecidable manual Sn 6.12 0
IV.MBAL.EHZ. 2021-02-16T18:19:24.22 3.0 undecidable manual Sn -2.94 0
IV.MTMR.EHZ. 2021-02-16T18:19:17.63 3.0 negative manual Pn -2.33 0
IV.RIBO.EHZ.01 2021-02-16T18:19:09.02 3.0 undecidable manual Sn 0.03 0
ST.VARA.EHZ. 2021-02-16T18:19:00.67 3.0 positive manual Pn -1.78 0
IV.FOSV.EHZ. 2021-02-16T18:18:51.03 0.6 undecidable manual S 161 72.0723 102 1.01 35
IV.ATLO.EHE. 2021-02-16T18:18:49.67 0.6 undecidable manual S 184 65.9895 105 0.94 36
IV.BRIS.HHZ. 2021-02-16T18:18:49.74 0.6 undecidable manual S 302 65.7897 105 1.05 33
IV.ATFO.HHZ. 2021-02-16T18:18:48.44 0.6 undecidable manual S 172 60.6948 107 0.79 39
IV.TB02.DHZ.01 2021-02-16T18:18:48.40 0.6 undecidable manual S 184 59.8956 108 0.93 37
IV.LMD.HHZ. 2021-02-16T18:18:48.55 0.6 undecidable manual S 287 63.2922 106 0.37 44
IV.ATSC.EHE. 2021-02-16T18:18:47.20 0.6 undecidable manual S 162 56.5989 110 0.4 45
IV.SSFR.HHZ. 2021-02-16T18:18:47.74 0.6 undecidable manual S 154 58.1973 109 0.61 43
IV.ASQU.HHZ. 2021-02-16T18:18:47.46 0.6 undecidable manual S 257 55.5 111 0.89 37
IV.ATMC.EHZ. 2021-02-16T18:18:47.66 0.6 undecidable manual S 203 55.6998 111 1.04 35
IV.TB01.DHN.01 2021-02-16T18:18:47.92 0.6 undecidable manual S 182 58.497 109 0.73 40
IV.ARVD.HHZ. 2021-02-16T18:18:47.97 0.6 undecidable manual S 140 59.3961 108 0.59 43
IV.ATPC.HNZ. 2021-02-16T18:18:45.16 0.6 undecidable manual S 181 47.4192 117 0.16 48
IV.FRON.EHZ. 2021-02-16T18:18:45.49 0.6 undecidable manual S 154 48.1185 116 0.37 47
IV.FDMO.HHZ. 2021-02-16T18:18:45.40 0.3 undecidable manual P 152 108.9132 96 0.54 59
IV.SFI.EHZ. 2021-02-16T18:18:45.08 0.6 undecidable manual S 270 49.4172 115 -0.29 47
IV.ATPI.EHZ. 2021-02-16T18:18:45.78 0.6 undecidable manual S 186 51.0156 114 0.09 49
IV.BADI.EHZ. 2021-02-16T18:18:45.08 0.6 undecidable manual S 202 47.619 117 0.05 49
IV.MGAB.HHZ. 2021-02-16T18:18:45.47 0.3 undecidable manual P 195 114.0969 95 -0.03 66
IV.ASSB.HHZ. 2021-02-16T18:18:44.16 0.3 undecidable manual P 171 97.3248 97 0.73 56
IV.CRTC.HHZ. 2021-02-16T18:18:44.26 0.3 undecidable manual S 115 36.8298 127 1.2 53
IV.MPAG.EHZ. 2021-02-16T18:18:43.66 0.6 undecidable manual S 143 38.9277 125 0.23 49
IV.PIEI.HHZ. 2021-02-16T18:18:43.52 0.6 undecidable manual S 172 41.7249 122 -0.4 46
IV.NARO.HHZ. 2021-02-16T18:18:42.27 0.6 undecidable manual S 164 34.3434 130 -0.36 47
IV.BLLA.EHZ. 2021-02-16T18:18:42.88 0.6 undecidable manual S 1 26.0517 140 1.51 30
IV.PESA.HHZ. 2021-02-16T18:18:42.68 0.6 undecidable manual S 83 30.1476 135 0.7 45
IV.PARC.HHZ. 2021-02-16T18:18:41.93 0.6 undecidable manual S 212 34.0437 131 -0.66 43
IV.ATCC.EHZ. 2021-02-16T18:18:41.94 0.3 undecidable manual P 170 81.4518 99 0.47 63
IV.RUFI.EHZ. 2021-02-16T18:18:41.12 0.3 undecidable manual P 264 76.7676 101 0.22 67
IV.PE3.EHZ. 2021-02-16T18:18:41.03 0.6 undecidable manual S 174 23.6541 144 -0.04 51
IV.SNTG.HHZ. 2021-02-16T18:18:41.84 0.6 undecidable manual P 152 81.9513 99 0.31 44
IV.FOSV.EHZ. 2021-02-16T18:18:40.16 0.3 undecidable manual P 161 72.0723 102 -0.17 69
IV.CPGN.EHZ. 2021-02-16T18:18:40.69 0.6 undecidable manual S 224 16.5723 154 0.42 49
IV.MURB.HHZ. 2021-02-16T18:18:40.62 0.3 undecidable manual P 176 71.7726 102 0.33 67
IV.ATMI.HHZ. 2021-02-16T18:18:39.98 0.6 undecidable manual P 194 65.6898 105 0.43 44
IV.LMD.HHZ. 2021-02-16T18:18:39.13 0.3 undecidable manual P 287 63.2922 106 -0.13 72
IV.ATLO.EHE. 2021-02-16T18:18:39.88 0.3 undecidable manual P 184 65.9895 105 0.3 68
IV.RSM2.HHZ. 2021-02-16T18:18:39.81 0.3 undecidable manual S 334 3.5964 174 0.32 77
IV.BRIS.HHZ. 2021-02-16T18:18:39.92 0.3 undecidable manual P 302 65.7897 105 0.36 66
IV.TB01.DHN.01 2021-02-16T18:18:38.32 0.3 undecidable manual P 182 58.497 109 -0.37 68
IV.TB02.DHZ.01 2021-02-16T18:18:38.88 0.3 undecidable manual P 184 59.8956 108 0.03 72
IV.CRE.HHZ. 2021-02-16T18:18:38.13 0.3 undecidable manual P 232 52.2033 113 0.17 71
IV.ARVD.HHZ. 2021-02-16T18:18:38.57 0.1 undecidable manual P 140 59.3961 108 -0.23 92
IV.ATFO.HHZ. 2021-02-16T18:18:38.66 0.3 undecidable manual P 172 60.6948 107 -0.3 69
IV.TB03.DHZ.01 2021-02-16T18:18:38.24 0.3 undecidable manual P 184 56.3991 110 -0.21 71
IV.SSFR.HHZ. 2021-02-16T18:18:38.34 0.3 undecidable manual P 154 58.1973 109 -0.32 68
IV.ASQU.HHZ. 2021-02-16T18:18:38.69 0.3 undecidable manual P 257 55.5 111 0.35 68
IV.ATMC.EHZ. 2021-02-16T18:18:38.08 0.3 undecidable manual P 203 55.6998 111 -0.28 70
IV.ATSC.EHE. 2021-02-16T18:18:38.08 0.1 undecidable manual P 162 56.5989 110 -0.39 90
IV.ATPI.EHZ. 2021-02-16T18:18:37.34 0.3 undecidable manual P 186 51.0156 114 -0.48 67
IV.FRON.EHZ. 2021-02-16T18:18:37.11 0.1 negative manual P 154 48.1185 116 -0.39 91
IV.CRTC.HHZ. 2021-02-16T18:18:36.43 0.1 undecidable manual P 115 36.8298 127 0.12 100
IV.BADI.EHZ. 2021-02-16T18:18:36.97 0.1 undecidable manual P 202 47.619 117 -0.48 90
IV.MPAG.EHZ. 2021-02-16T18:18:36.08 0.1 negative manual P 143 38.9277 125 -0.44 92
IV.ATPC.HNZ. 2021-02-16T18:18:36.84 0.1 undecidable manual P 181 47.4192 117 -0.58 87
IV.PIEI.HHZ. 2021-02-16T18:18:36.07 0.1 negative manual P 172 41.7249 122 -0.74 82
IV.SFI.EHZ. 2021-02-16T18:18:36.76 0.3 undecidable manual P 270 49.4172 115 -0.88 59
IV.NARO.HHZ. 2021-02-16T18:18:35.36 0.1 negative manual P 164 34.3434 130 -0.7 84
IV.PARC.HHZ. 2021-02-16T18:18:35.05 0.1 undecidable manual P 212 34.0437 131 -0.99 75
IV.BLLA.EHZ. 2021-02-16T18:18:35.48 0.3 undecidable manual P 1 26.0517 140 0.14 76
IV.PESA.HHZ. 2021-02-16T18:18:35.59 0.1 undecidable manual P 83 30.1476 135 -0.09 100
IV.PE3.EHZ. 2021-02-16T18:18:34.59 0.1 negative manual P 174 23.6541 144 -0.57 90
IV.CPGN.EHZ. 2021-02-16T18:18:34.28 0.1 negative manual P 224 16.5723 154 -0.42 96
IV.RSM2.HHZ. 2021-02-16T18:18:33.84 0.3 undecidable manual P 334 3.5964 174 -0.4 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PE3.EHE. ML:2.0 0.00026741335 0.5376 AML other m 2021-02-16T18:18:41.36
IV.PE3.EHN. ML:2.5 0.000851 0.44 AML other m 2021-02-16T18:18:41.45
IV.CPGN.EHE. ML:1.5 0.00010174333500000001 0.2944 AML other m 2021-02-16T18:18:41.61
IV.CPGN.EHN. ML:1.6 0.00010981209999999999 0.3584 AML other m 2021-02-16T18:18:41.63
IV.PARC.HHN. ML:1.2 0.000035964780000000004 0.3072 AML other m 2021-02-16T18:18:42.22
IV.NARO.HHE. ML:1.9 0.00019761975 0.2816 AML other m 2021-02-16T18:18:42.42
IV.NARO.HHN. ML:1.8 0.00015893954999999997 0.128 AML other m 2021-02-16T18:18:42.92
IV.PESA.HHN. ML:2.2 0.0003639851 0.2048 AML other m 2021-02-16T18:18:43.00
IV.PESA.HHE. ML:2.2 0.00038366880000000004 0.2432 AML other m 2021-02-16T18:18:43.23
IV.PIEI.HHN. ML:2.1 0.000249 0.3 AML other m 2021-02-16T18:18:43.73
IV.PIEI.HHE. ML:2.3 0.00037248115 0.1664 AML other m 2021-02-16T18:18:44.04
IV.CRTC.HHE. ML:1.8 0.00015355649999999999 0.4352 AML other m 2021-02-16T18:18:44.90
IV.CRTC.HHN. ML:1.9 0.00015912355 0.6016 AML other m 2021-02-16T18:18:45.24
IV.BADI.EHE. ML:1.6 0.00007847689 0.2176 AML other m 2021-02-16T18:18:45.34
IV.BADI.EHN. ML:1.5 0.000061015369999999997 0.2432 AML other m 2021-02-16T18:18:45.40
IV.FRON.EHN. ML:1.9 0.000158771805 0.2304 AML other m 2021-02-16T18:18:45.80
IV.PARC.HHE. ML:1.1 0.000031437925 0.2176 AML other m 2021-02-16T18:18:45.75
IV.FRON.EHE. ML:1.5 0.000065244895 0.5632 AML other m 2021-02-16T18:18:45.91
IV.SFI.EHE. ML:1.3 0.000035173625 0.2176 AML other m 2021-02-16T18:18:46.36
IV.ATPI.EHE. ML:1.4 0.00004031329 0.2304 AML other m 2021-02-16T18:18:46.66
IV.ATPI.EHN. ML:1.4 0.000038630645 0.7296 AML other m 2021-02-16T18:18:47.07
IV.ASQU.HHE. ML:1.5 0.00004759048 0.9728 AML other m 2021-02-16T18:18:48.15
IV.CRE.HHN. ML:1.9 0.00015 0.26 AML other m 2021-02-16T18:18:47.80
IV.ASQU.HHN. ML:1.5 0.000049743785 0.4608 AML other m 2021-02-16T18:18:47.71
IV.SSFR.HNN. ML:2.2 0.00026765329999999996 0.2304 AML other m 2021-02-16T18:18:48.18
IV.SSFR.HHE. ML:2.1 0.00020452370000000002 0.1408 AML other m 2021-02-16T18:18:48.26
IV.SSFR.HNE. ML:2.3 0.0002965264 0.32 AML other m 2021-02-16T18:18:48.28
IV.SSFR.HHN. ML:2.3 0.00028849999999999997 0.26 AML other m 2021-02-16T18:18:48.28
IV.CRE.HHE. ML:1.6 0.00006515 0.62 AML other m 2021-02-16T18:18:48.20
IV.ARVD.HHE. ML:1.4 0.00004185779 0.1664 AML other m 2021-02-16T18:18:48.67
IV.LMD.HHN. ML:1.4 0.00003671298 0.5504 AML other m 2021-02-16T18:18:49.11
IV.ATFO.HHN. ML:1.8 0.000085215365 0.5632 AML other m 2021-02-16T18:18:48.73
IV.LMD.HHE. ML:1.5 0.000049505985 0.8576 AML other m 2021-02-16T18:18:49.27
IV.ATMI.HHE. ML:1.8 0.00009554999999999999 0.64 AML other m 2021-02-16T18:18:50.89
IV.ATMI.HHN. ML:2.0 0.000135 0.46 AML other m 2021-02-16T18:18:51.18
IV.FOSV.EHE. ML:1.5 0.0000440366 0.4992 AML other m 2021-02-16T18:18:51.66
IV.FOSV.EHN. ML:1.6 0.00004931343 0.2432 AML other m 2021-02-16T18:18:51.80
IV.ARVD.HHN. ML:1.4 0.000035583665 0.1152 AML other m 2021-02-16T18:18:51.87
IV.MURB.HHN. ML:2.0 0.000132963 1.6544 AML other m 2021-02-16T18:18:52.17
IV.MURB.HHE. ML:1.9 0.00009433389 0.32 AML other m 2021-02-16T18:18:52.42
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