Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 18-03-2022 and time 22:31:01 (UTC) in region 2 km N San Leo (RN)

A magnitude ML 1.2 earthquake occured in region: 2 km N San Leo (RN), on

  • 18-03-2022 22:31:01 (UTC)
  • 18-03-2022 23:31:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9170, 12.3430 at 21 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
San Leo RN 2 2972 2972
Talamello RN 5 1104 4076
Novafeltria RN 5 7164 11240
Maiolo RN 5 848 12088
Poggio Torriana RN 8 5135 17223
Montecopiolo PU 8 1128 18351
Verucchio RN 10 10078 28429
Monte Cerignone PU 10 669 29098
Sogliano al Rubicone FC 10 3195 32293
Monte Grimano Terme PU 12 1136 33429
Sant'Agata Feltria RN 12 2151 35580
Pennabilli RN 13 2869 38449
Mercato Saraceno FC 13 6886 45335
Pietrarubbia PU 13 660 45995
Borghi FC 13 2843 48838
Mercatino Conca PU 13 1086 49924
Sassofeltrio PU 14 1388 51312
Roncofreddo FC 14 3386 54698
Macerata Feltria PU 15 1990 56688
Carpegna PU 15 1674 58362
Sarsina FC 16 3446 61808
Montescudo - Monte Colombo RN 16 6779 68587
Frontino PU 17 293 68880
Longiano FC 18 7126 76006
Santarcangelo di Romagna RN 18 22089 98095
Montiano FC 19 1716 99811
Gemmano RN 19 1158 100969
Sassocorvaro PU 19 3504 104473

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Rimini (147750 inhabitants)
26 Km SE of Cesena (96758 inhabitants)
42 Km SE of Forlì (117913 inhabitants)
46 Km W of Pesaro (94582 inhabitants)
55 Km W of Fano (60888 inhabitants)
55 Km SE of Faenza (58541 inhabitants)
57 Km S of Ravenna (159116 inhabitants)
62 Km NE of Arezzo (99543 inhabitants)
70 Km SE of Imola (69797 inhabitants)
89 Km E of Firenze (382808 inhabitants)
90 Km N of Perugia (166134 inhabitants)
95 Km E of Scandicci (50609 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 1.2 2022-03-18
22:31:01		 43.9172 12.3433 21 2022-07-08
12:33:59		 Bollettino Sismico Italiano INGV 104913401
Reviewed
Rev100 		ML 1.4 2022-03-18
22:31:01		 43.9308 12.3325 11 2022-03-18
22:43:47		 Sala Sismica INGV-Roma 102129451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-18 22:31:01 ± 0.15
Latitude 43.9172 ± 0.0063
Longitude 12.3433 ± 0.0100
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 104913401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 747
Semi-minor axis of confidence ellipse (meter) 423
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.60614
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 104913401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-29 14:09:07

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 102129451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-18 22:43:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RUFI.EHN. 2022-03-18T22:31:22.51 0.6 undecidable manual S 263 67.2771 100 0.29 43
IV.ARVD.HHE. 2022-03-18T22:31:22.99 1.0 undecidable manual S 134 66.7776 100 0.89 18
IV.SSFR.HHZ. 2022-03-18T22:31:21.97 0.6 undecidable manual S 146 63.8916 101 0.62 40
IV.TSM2.DHE.01 2022-03-18T22:31:20.26 0.6 undecidable manual S 168 58.9965 102 0.21 44
IV.TB03.DHZ.01 2022-03-18T22:31:20.12 1.0 undecidable manual S 175 57.498 102 0.46 21
IV.ATVO.HNE. 2022-03-18T22:31:20.48 0.6 undecidable manual S 175 59.5959 101 0.27 44
IV.TB01.DHN.01 2022-03-18T22:31:20.30 0.6 undecidable manual S 173 59.8956 101 0.01 46
IV.LMD.HHE. 2022-03-18T22:31:19.43 1.0 undecidable manual S 290 53.8017 103 0.73 19
IV.ATBU.HNZ. 2022-03-18T22:31:19.05 0.6 undecidable manual S 161 51.7038 104 0.9 36
IV.ATPI.EHN. 2022-03-18T22:31:18.42 0.6 undecidable manual S 175 52.0035 104 0.2 45
IV.FRON.EHZ. 2022-03-18T22:31:18.89 0.6 undecidable manual S 145 53.9016 103 0.17 45
IV.MPAG.HNZ. 2022-03-18T22:31:17.31 0.6 undecidable manual S 134 46.2204 106 0.58 42
IV.PIEI.HHZ. 2022-03-18T22:31:16.25 0.3 undecidable manual S 160 45.0216 106 -0.19 69
IV.BADI.EHZ. 2022-03-18T22:31:16.34 0.3 undecidable manual S 190 45.9207 106 -0.31 67
IV.APEC.HHE. 2022-03-18T22:31:15.06 0.6 undecidable manual S 171 40.2264 108 -0.16 47
IV.NARO.HHZ. 2022-03-18T22:31:14.70 0.6 undecidable manual S 151 38.9277 109 -0.18 46
IV.ARVD.HHE. 2022-03-18T22:31:13.79 0.6 undecidable manual P 134 66.7776 100 0.35 42
IV.RUFI.EHN. 2022-03-18T22:31:13.01 1.0 undecidable manual P 263 67.2771 100 -0.5 21
IV.SSFR.HHZ. 2022-03-18T22:31:13.26 0.3 undecidable manual P 146 63.8916 101 0.26 65
IV.TB01.DHN.01 2022-03-18T22:31:12.17 0.6 undecidable manual P 173 59.8956 101 -0.22 45
IV.PE3.EHZ. 2022-03-18T22:31:12.31 0.6 undecidable manual S 153 27.4503 119 0.24 47
IV.TB03.DHZ.01 2022-03-18T22:31:12.78 0.6 undecidable manual P 175 57.498 102 0.76 37
IV.LMD.HHE. 2022-03-18T22:31:12.03 0.6 undecidable manual P 290 53.8017 103 0.56 41
IV.ATVO.HNE. 2022-03-18T22:31:12.67 0.3 undecidable manual P 175 59.5959 101 0.33 65
IV.FRON.EHZ. 2022-03-18T22:31:11.29 0.3 undecidable manual P 145 53.9016 103 -0.19 68
IV.TSM2.DHE.01 2022-03-18T22:31:11.91 0.6 undecidable manual P 168 58.9965 102 -0.34 43
IV.ATBU.HNZ. 2022-03-18T22:31:11.28 0.3 undecidable manual P 161 51.7038 104 0.13 69
IV.MPAG.HNZ. 2022-03-18T22:31:10.36 0.3 undecidable manual P 134 46.2204 106 0.03 71
IV.ATPI.EHN. 2022-03-18T22:31:10.91 1.0 undecidable manual P 175 52.0035 104 -0.29 22
IV.BADI.EHZ. 2022-03-18T22:31:09.77 0.1 undecidable manual P 190 45.9207 106 -0.52 86
IV.CPGN.EHE. 2022-03-18T22:31:09.24 0.6 undecidable manual S 188 12.9759 143 0.13 50
IV.PIEI.HHZ. 2022-03-18T22:31:09.58 0.3 undecidable manual P 160 45.0216 106 -0.58 63
IV.RSM2.HHE. 2022-03-18T22:31:08.60 0.6 undecidable manual S 74 8.4804 154 0.12 50
IV.NARO.HHZ. 2022-03-18T22:31:08.92 0.1 undecidable manual P 151 38.9277 109 -0.35 90
IV.APEC.HHE. 2022-03-18T22:31:08.99 0.3 undecidable manual P 171 40.2264 108 -0.47 66
IV.PE3.EHZ. 2022-03-18T22:31:07.32 0.1 undecidable manual P 153 27.4503 119 -0.32 92
IV.CPGN.EHE. 2022-03-18T22:31:05.76 0.1 undecidable manual P 188 12.9759 143 -0.18 97
IV.RSM2.HHE. 2022-03-18T22:31:05.52 0.1 undecidable manual P 74 8.4804 154 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PE3.EHN. ML:1.3 0.00009485058499999998 0.2176 AML other m 2022-03-18T22:31:14.45
IV.PE3.EHE. ML:1.2 0.00006878519 0.448 AML other m 2022-03-18T22:31:15.01
IV.PIEI.HHN. ML:1.1 0.000036496495000000005 0.1024 AML other m 2022-03-18T22:31:16.73
IV.PIEI.HHE. ML:1.5 0.00009125 0.18 AML other m 2022-03-18T22:31:16.97
IV.BADI.EHN. ML:1.2 0.000037902459999999996 0.1408 AML other m 2022-03-18T22:31:17.37
IV.NARO.HHE. ML:0.9 0.000026652015000000003 0.0768 AML other m 2022-03-18T22:31:17.47
IV.NARO.HHN. ML:1.0 0.000028044879000000002 0.0768 AML other m 2022-03-18T22:31:17.73
IV.BADI.EHE. ML:1.2 0.00003830254 0.1792 AML other m 2022-03-18T22:31:18.52
IV.FRON.EHN. ML:1.0 0.0000180608875 0.1024 AML other m 2022-03-18T22:31:22.73
IV.SSFR.HHE. ML:1.4 0.00005230222 0.1792 AML other m 2022-03-18T22:31:24.83
IV.SSFR.HHN. ML:1.4 0.000042569380000000005 0.1536 AML other m 2022-03-18T22:31:28.06
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