Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 28-03-2022 and time 22:34:05 (Italy) in region 7 km SE Norcia (PG)

A magnitude ML 0.7 earthquake occured in region: 7 km SE Norcia (PG), on

  • 28-03-2022 20:34:05 (UTC)
  • 28-03-2022 22:34:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7510, 13.1640 at 10 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
Norcia PG 7 4957 4957
Accumoli RI 9 667 5624
Arquata del Tronto AP 11 1178 6802
Cascia PG 13 3217 10019
Cittareale RI 15 482 10501
Castelsantangelo sul Nera MC 16 281 10782
Amatrice RI 17 2657 13439
Montegallo AP 17 523 13962
Preci PG 18 724 14686
Poggiodomo PG 19 117 14803

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km SE of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
75 Km SE of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Pescara (121014 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
94 Km W of Chieti (51815 inhabitants)
94 Km E of Viterbo (67173 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 0.7 2022-03-28
20:34:05		 42.7513 13.1637 10 2022-03-28
20:39:50		 Sala Sismica INGV-Roma 102507631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-28 20:34:05 ± 0.04
Latitude 42.7513 ± 0.0018
Longitude 13.1637 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 102507631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 526
Semi-minor axis of confidence ellipse (meter) 123
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 285
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) 132
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.08993
Epicentral distance of station farthest from the epicenter (degree) 0.34174
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 102507631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-28 20:39:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2022-03-28T20:34:17.81 0.3 undecidable manual S 5 37.9287 50 -0.02 73
IV.RM33.EHZ. 2022-03-28T20:34:15.11 0.3 undecidable manual S 171 27.1506 50 0.14 73
IV.MMO1.EHZ. 2022-03-28T20:34:13.21 0.3 undecidable manual S 39 21.1677 116 -0.03 75
IV.CESI.HHZ. 2022-03-28T20:34:12.24 0.6 undecidable manual P 323 35.1426 50 0.23 47
IV.MC2.EHZ. 2022-03-28T20:34:12.49 0.3 undecidable manual S 7 17.871 120 0.24 73
IV.LNSS.HHZ. 2022-03-28T20:34:12.64 0.3 undecidable manual S 211 19.2696 118 -0.04 75
IV.CSP1.EHZ. 2022-03-28T20:34:12.25 0.1 undecidable manual P 5 37.9287 50 -0.19 94
IV.RM33.EHZ. 2022-03-28T20:34:10.71 0.1 undecidable manual P 171 27.1506 50 -0.08 98
IV.LNSS.HHZ. 2022-03-28T20:34:09.49 0.3 undecidable manual P 211 19.2696 118 0.02 76
IV.NRCA.HHZ. 2022-03-28T20:34:09.90 0.3 undecidable manual S 336 9.9789 136 -0.17 75
IV.MMO1.EHZ. 2022-03-28T20:34:09.74 0.1 undecidable manual P 39 21.1677 116 -0.05 100
IV.MC2.EHZ. 2022-03-28T20:34:09.31 0.1 undecidable manual P 7 17.871 120 0.09 100
IV.NRCA.HHZ. 2022-03-28T20:34:08.00 0.3 undecidable manual P 336 9.9789 136 0.04 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:0.7 0.0000422 1.3 AML other m 2022-03-28T20:34:12.90
IV.LNSS.HHE. ML:0.8 0.00004375 1.34 AML other m 2022-03-28T20:34:13.11
IV.NRCA.HHE. ML:1.5 0.00043071369999999996 0.1024 AML other m 2022-03-28T20:34:10.21
IV.NRCA.HHN. ML:1.2 0.0001818365 0.1024 AML other m 2022-03-28T20:34:10.14
IV.MC2.EHE. ML:0.7 0.00004381087 0.1792 AML other m 2022-03-28T20:34:13.13
IV.MC2.EHN. ML:0.9 0.00006688515 0.2048 AML other m 2022-03-28T20:34:13.73
IV.MMO1.EHE. ML:0.5 0.000018330395 0.1024 AML other m 2022-03-28T20:34:13.36
IV.MMO1.EHN. ML:0.5 0.0000188324195 0.0896 AML other m 2022-03-28T20:34:13.73
IV.RM33.EHE. ML:0.3 0.000009954859 0.1792 AML other m 2022-03-28T20:34:15.77
IV.RM33.EHN. ML:0.3 0.0000089612285 0.2176 AML other m 2022-03-28T20:34:15.66
IV.CSP1.EHE. ML:0.8 0.000024419529999999998 0.3584 AML other m 2022-03-28T20:34:18.37
IV.CSP1.EHN. ML:0.8 0.0000268068385 1.2288 AML other m 2022-03-28T20:34:18.32
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