Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 20-03-2022 and time 09:50:08 (Italy) in region 4 km S Montelanico (RM)

A magnitude Md 2.0 earthquake occured in region: 4 km S Montelanico (RM), on

  • 20-03-2022 08:50:08 (UTC)
  • 20-03-2022 09:50:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.6160, 13.0330 at 7 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
Montelanico RM 4 2131 2131
Carpineto Romano RM 5 4524 6655
Norma LT 6 3946 10601
Bassiano LT 7 1583 12184
Gorga RM 8 710 12894
Sermoneta LT 8 9842 22736
Segni RM 9 9159 31895
Gavignano RM 9 1916 33811
Cori LT 10 11065 44876
Sgurgola FR 12 2676 47552
Rocca Massima LT 12 1136 48688
Colleferro RM 13 21595 70283
Sezze LT 13 24894 95177
Morolo FR 14 3257 98434
Roccagorga LT 14 4591 103025
Supino FR 16 4873 107898
Maenza LT 16 3074 110972
Artena RM 17 14276 125248
Cisterna di Latina LT 17 36868 162116
Anagni FR 18 21464 183580
Patrica FR 18 3171 186751
Latina LT 20 125985 312736
Priverno LT 20 14525 327261

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Latina (125985 inhabitants)
23 Km E of Velletri (53303 inhabitants)
32 Km E of Aprilia (73446 inhabitants)
38 Km NE of Anzio (54211 inhabitants)
43 Km SE of Tivoli (56533 inhabitants)
45 Km E of Pomezia (62966 inhabitants)
50 Km SE of Guidonia Montecelio (88673 inhabitants)
55 Km SE of Roma (2864731 inhabitants)
68 Km E of Fiumicino (78395 inhabitants)
87 Km SW of L'Aquila (69753 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 		Md 2.0 2022-03-20
08:50:08		 41.6163 13.0332 7 2022-07-08
12:33:54		 Bollettino Sismico Italiano INGV 104349361
Reviewed
Rev100 		Md 2.0 2022-03-20
08:50:08		 41.6132 13.0333 7 2022-03-20
09:08:35		 Sala Sismica INGV-Roma 102175231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-20 08:50:08 ± 0.09
Latitude 41.6163 ± 0.0054
Longitude 13.0332 ± 0.0060
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 104349361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 510
Semi-minor axis of confidence ellipse (meter) 463
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 7
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.90202
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 17
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations 7
Type of magnitude Md
Reference to an origin 104349361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-12 14:57:03

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations 7
Type of magnitude Md
Reference to an origin 102175231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-20 09:08:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2022-03-20T08:50:34.83 3.0 undecidable manual Sg 12.96 0
IV.VVLD.HNN. 2022-03-20T08:50:27.02 0.3 undecidable manual S 60 56.2992 50 0.03 93
IV.POFI.HNZ. 2022-03-20T08:50:27.72 0.6 undecidable manual S 78 57.3981 50 0.46 57
IV.RM33.HNE. 2022-03-20T08:50:26.71 0.6 undecidable manual P 9 100.122 50 0.75 47
IV.T0110.HHE. 2022-03-20T08:50:24.16 0.6 undecidable manual P 42 91.6416 50 -0.48 53
IV.SPS2.HHZ. 2022-03-20T08:50:24.98 3.0 negative manual Pn 4.96 0
IV.LRP.EHN. 2022-03-20T08:50:24.55 0.6 undecidable manual S 86 46.0206 50 0.32 60
IV.CERA.HNN. 2022-03-20T08:50:23.04 0.6 undecidable manual P 91 81.7515 50 -0.09 58
IV.MUCR.HHZ. 2022-03-20T08:50:22.36 3.0 undecidable manual Pn -1.68 0
IV.MCI.EHN. 2022-03-20T08:50:21.50 0.6 undecidable manual P 102 66.1893 50 0.77 50
IV.CERT.HNE. 2022-03-20T08:50:21.11 0.6 undecidable manual S 353 37.1295 101 -0.59 56
IV.RMP.HHN. 2022-03-20T08:50:20.95 0.6 undecidable manual S 309 34.743 101 0.05 64
IV.GUAR.HHN. 2022-03-20T08:50:19.44 0.6 undecidable manual S 49 30.4473 103 0.03 65
IV.POFI.HNZ. 2022-03-20T08:50:19.13 0.3 undecidable manual P 78 57.3981 50 -0.24 89
IV.RDP.HHZ. 2022-03-20T08:50:19.89 0.6 undecidable manual S 301 31.1466 103 0.22 62
IV.PTQR.HHE. 2022-03-20T08:50:19.07 0.3 undecidable manual P 34 54.3012 50 0.17 91
IV.MTCE.HHN. 2022-03-20T08:50:18.04 0.3 undecidable manual P 332 51.1155 50 -0.37 88
IV.VIVA.HHE. 2022-03-20T08:50:18.52 0.6 undecidable manual S 304 26.3514 105 0.47 60
IV.VVLD.HNN. 2022-03-20T08:50:18.77 0.3 undecidable manual P 60 56.2992 50 -0.44 85
IV.RCAV.EHN. 2022-03-20T08:50:18.30 0.6 undecidable manual S 344 26.6511 105 0.16 64
IV.LRP.EHN. 2022-03-20T08:50:17.24 0.3 undecidable manual P 86 46.0206 50 -0.38 88
IV.GIUL.HHE. 2022-03-20T08:50:16.25 0.6 undecidable manual S 109 19.4694 110 0.49 60
IV.CERT.HNE. 2022-03-20T08:50:15.70 0.3 undecidable manual P 353 37.1295 101 -0.46 88
IV.RDP.HHZ. 2022-03-20T08:50:15.36 0.6 undecidable manual P 301 31.1466 103 0.38 60
IV.RMP.HHN. 2022-03-20T08:50:15.68 0.6 undecidable manual P 309 34.743 101 -0.01 65
IV.RCAV.EHN. 2022-03-20T08:50:14.37 0.3 undecidable manual P 344 26.6511 105 0.27 93
IV.GUAR.HHN. 2022-03-20T08:50:14.56 0.3 undecidable manual P 49 30.4473 103 -0.28 93
IV.VIVA.HHE. 2022-03-20T08:50:14.13 0.3 undecidable manual P 304 26.3514 105 0.08 97
IV.LATB.EHE. 2022-03-20T08:50:13.75 0.6 undecidable manual S 203 14.7741 115 -0.51 60
IV.GIUL.HHE. 2022-03-20T08:50:12.84 0.3 undecidable manual P 109 19.4694 110 0.11 98
IV.CET2.HHZ. 2022-03-20T08:50:11.93 3.0 undecidable manual Pn -2.87 0
IV.LATB.EHE. 2022-03-20T08:50:11.82 0.3 undecidable manual P 203 14.7741 115 -0.04 100
CH.MUGIO.HHZ. 2022-03-20T08:50:07.75 3.0 positive manual Pn -4.94 0
GU.CANO.HHZ. 2022-03-20T08:50:05.90 3.0 undecidable manual Pg 5.51 0
MN.TRI.HHZ. 2022-03-20T08:50:05.66 3.0 undecidable manual Pn -1.17 0
IV.PP3.EHZ. 2022-03-20T08:50:02.62 3.0 undecidable manual Sn -0.4 0
RD.PGF.BHZ. 2022-03-20T08:49:59.88 3.0 undecidable manual Sn -9.99 0
IV.CING.HHZ. 2022-03-20T08:49:58.39 3.0 undecidable manual Sn 1.03 0
IV.ATFO.HHZ. 2022-03-20T08:49:34.94 3.0 undecidable manual Pg 2.13 0
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
Waveforms Seismic signals in miniseed + resp format Download