Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 17-03-2022 and time 23:13:32 (Italy) in region 2 km NE Massa Martana (PG)

A magnitude ML 1.4 earthquake occured in region: 2 km NE Massa Martana (PG), on

  • 17-03-2022 22:13:32 (UTC)
  • 17-03-2022 23:13:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7940, 12.5340 at 8 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Massa Martana PG 2 3770 3770
Giano dell'Umbria PG 6 3846 7616
Todi PG 10 16851 24467
Acquasparta TR 11 4778 29245
Castel Ritaldi PG 12 3278 32523
Gualdo Cattaneo PG 13 6155 38678
Collazzone PG 14 3473 42151
Montefalco PG 15 5679 47830
Fratta Todina PG 15 1839 49669
Monte Castello di Vibio PG 16 1567 51236
Montecastrilli TR 16 5022 56258
Bevagna PG 17 5081 61339
Avigliano Umbro TR 18 2558 63897
Spoleto PG 18 38218 102115
Trevi PG 20 8469 110584
San Gemini TR 20 5018 115602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of Foligno (57155 inhabitants)
28 Km NW of Terni (111501 inhabitants)
37 Km SE of Perugia (166134 inhabitants)
55 Km NE of Viterbo (67173 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
90 Km N of Guidonia Montecelio (88673 inhabitants)
92 Km SE of Arezzo (99543 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
97 Km W of Teramo (54892 inhabitants)
99 Km NE of Civitavecchia (52991 inhabitants)
100 Km N of Roma (2864731 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
Reviewed
Rev100 		ML 1.4 2022-03-17
22:13:32		 42.794 12.534 8 2022-03-17
22:20:25		 Sala Sismica INGV-Roma 102085481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-17 22:13:32 ± 0.08
Latitude 42.7940 ± 0.0036
Longitude 12.5340 ± 0.0061
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 102085481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 535
Semi-minor axis of confidence ellipse (meter) 390
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) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.67719
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 102085481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-17 22:20:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SL.LJU.BHZ. 2022-03-17T22:15:20.62 3.0 undecidable manual Sg 6.62 0
IV.MSRU.HHZ. 2022-03-17T22:15:03.77 3.0 negative manual Pg 14.42 0
IV.MPNC.HHZ. 2022-03-17T22:14:49.12 3.0 undecidable manual Pn -0.97 0
OX.ACOM.HHZ. 2022-03-17T22:14:40.66 3.0 positive manual Pg 7.36 0
RF.GEPF.HHZ. 2022-03-17T22:14:36.84 3.0 positive manual Pg 7.81 0
NI.VINO.HHZ. 2022-03-17T22:14:35.62 0.1 positive manual P 6.69 0
IX.SCL3.EHZ.02 2022-03-17T22:14:19.80 3.0 undecidable manual Pn -2.25 0
IV.RIBO.EHZ.01 2022-03-17T22:14:06.88 3.0 undecidable manual S -6.03 0
IV.PTRJ.HHZ. 2022-03-17T22:14:06.16 3.0 undecidable manual Pn -2.17 0
IV.EL6.EHZ. 2022-03-17T22:13:56.23 0.6 undecidable manual S 38 75.1692 50 0.95 34
IV.RM33.EHZ. 2022-03-17T22:13:52.67 0.6 undecidable manual S 119 63.8916 50 0.39 43
IV.ATMI.HHZ. 2022-03-17T22:13:52.24 0.6 undecidable manual S 340 63.6918 50 0.02 46
IV.NRCA.HHZ. 2022-03-17T22:13:48.10 0.6 undecidable manual S 85 47.4192 50 0.22 46
IV.MML1.EHZ. 2022-03-17T22:13:48.69 0.3 undecidable manual S 45 50.2164 50 0.07 70
IV.LNSS.HHZ. 2022-03-17T22:13:47.52 0.6 undecidable manual S 117 46.4202 50 -0.09 47
IV.ATPI.EHZ. 2022-03-17T22:13:45.67 0.1 undecidable manual P 352 73.5708 50 0.43 83
IV.CESI.HHZ. 2022-03-17T22:13:45.23 0.6 undecidable manual S 52 38.1285 50 -0.18 47
IV.EL6.EHZ. 2022-03-17T22:13:45.38 1.0 undecidable manual P 38 75.1692 50 -0.09 22
IV.MC2.EHZ. 2022-03-17T22:13:44.22 3.0 undecidable manual P 0 0
IV.MGAB.HHZ. 2022-03-17T22:13:44.92 0.6 undecidable manual S 291 36.741 50 -0.11 48
IV.RM33.EHZ. 2022-03-17T22:13:43.48 1.0 negative manual P 119 63.8916 50 -0.27 22
IV.ATMI.HHZ. 2022-03-17T22:13:43.72 0.3 negative manual P 340 63.6918 50 0 69
IV.ASSB.HHZ. 2022-03-17T22:13:42.44 0.6 undecidable manual S 20 29.3484 105 -0.22 47
IV.NRCA.HHZ. 2022-03-17T22:13:41.03 0.3 negative manual P 85 47.4192 50 -0.18 69
IV.MML1.EHZ. 2022-03-17T22:13:41.47 0.1 undecidable manual P 45 50.2164 50 -0.17 92
IV.LNSS.HHZ. 2022-03-17T22:13:40.79 0.3 negative manual P 117 46.4202 50 -0.26 68
IV.MGAB.HHZ. 2022-03-17T22:13:39.33 1.0 undecidable manual P 291 36.741 50 -0.23 23
IV.CESX.HHZ. 2022-03-17T22:13:39.94 0.6 undecidable manual S 168 21.0678 111 0.03 50
IV.CESI.HHZ. 2022-03-17T22:13:39.45 0.1 undecidable manual P 52 38.1285 50 -0.32 91
IV.ASSB.HHZ. 2022-03-17T22:13:38.05 0.1 undecidable manual P 20 29.3484 105 -0.15 96
IV.CESX.HHZ. 2022-03-17T22:13:36.65 0.3 negative manual P 168 21.0678 111 0.04 74
IT.GNU.HGZ. 2022-03-17T22:13:35.04 0.6 undecidable manual S 70 3.0969 159 -0.05 51
IV.MOMA.HHN. 2022-03-17T22:13:35.02 0.6 undecidable manual S 70 3.0969 159 -0.07 51
IT.GNU.HGZ. 2022-03-17T22:13:34.04 0.1 undecidable manual P 70 3.0969 159 0.21 99
IV.MOMA.HHN. 2022-03-17T22:13:33.98 0.1 undecidable manual P 70 3.0969 159 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:1.6 0.0002615 0.82 AML other m 2022-03-17T22:13:40.67
IV.CESX.HHE. ML:1.6 0.0002605 0.64 AML other m 2022-03-17T22:13:41.01
IV.ASSB.HHN. ML:1.0 0.00005345 0.56 AML other m 2022-03-17T22:13:42.19
IV.ASSB.HHE. ML:1.0 0.0000562 0.32 AML other m 2022-03-17T22:13:43.41
IV.MGAB.HHN. ML:1.4 0.000106 1.04 AML other m 2022-03-17T22:13:45.01
IV.MGAB.HHE. ML:1.5 0.0001205 0.36 AML other m 2022-03-17T22:13:46.26
IV.CESI.HHN. ML:1.1 0.000048549999999999994 0.52 AML other m 2022-03-17T22:13:46.65
IV.CESI.HHE. ML:1.0 0.000035699999999999994 1.38 AML other m 2022-03-17T22:13:46.28
IV.LNSS.HHN. ML:1.5 0.0000881 0.7 AML other m 2022-03-17T22:13:47.61
IV.NRCA.HHE. ML:1.5 0.00008815 0.12 AML other m 2022-03-17T22:13:49.70
IV.LNSS.HHE. ML:1.4 0.0000674 0.36 AML other m 2022-03-17T22:13:49.69
IV.NRCA.HHN. ML:1.4 0.0000675 1.88 AML other m 2022-03-17T22:13:49.94
IV.ATMI.HHN. ML:1.7 0.00009095 1.12 AML other m 2022-03-17T22:13:55.57
IV.ATMI.HHE. ML:1.7 0.00009825 0.32 AML other m 2022-03-17T22:13:55.70
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