Earthquake with magnitude of ML 0.9 on date 28-01-2022 and time 03:55:31 (Italy) in region 1 km N Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 1 km N Norcia (PG), on

  • 28-01-2022 02:55:31 (UTC)
  • 28-01-2022 03:55:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8000, 13.0960 at 12 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.

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 1 4957 4957
Preci PG 10 724 5681
Cascia PG 11 3217 8898
Castelsantangelo sul Nera MC 12 281 9179
Visso MC 15 1107 10286
Cerreto di Spoleto PG 15 1075 11361
Poggiodomo PG 16 117 11478
Ussita MC 17 444 11922
Arquata del Tronto AP 17 1178 13100
Sellano PG 17 1079 14179
Accumoli RI 17 667 14846
Vallo di Nera PG 19 364 15210

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
99 Km W of Pescara (121014 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 0.9 2022-01-28
02:55:31
42.8003 13.0962 12 2022-07-08
12:33:42
Bollettino Sismico Italiano INGV 103086681
Reviewed
Rev100
ML 1.0 2022-01-28
02:55:31
42.8215 13.0897 15 2022-01-28
03:02:51
Sala Sismica INGV-Roma 100247321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-28 02:55:31 ± 0.08
Latitude 42.8003 ± 0.0036
Longitude 13.0962 ± 0.0086
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 103086681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 768
Semi-minor axis of confidence ellipse (meter) 203
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 770.0
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 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.03597
Epicentral distance of station farthest from the epicenter (degree) 0.23652
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 103086681
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-04-11 16:31:07

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 100247321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-28 03:02:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2022-01-28T02:55:41.20 0.6 undecidable manual S 358 26.2515 92 -0.1 49
IV.MMO1.HNN. 2022-01-28T02:55:40.10 0.6 undecidable manual S 60 21.7671 94 -0.01 50
IV.LNSS.HHZ. 2022-01-28T02:55:40.00 0.3 undecidable manual S 192 22.3554 93 -0.28 71
IV.GAVE.EHZ. 2022-01-28T02:55:39.90 0.3 undecidable manual S 234 20.3685 94 0.16 72
IV.MC2.EHE. 2022-01-28T02:55:38.50 0.3 undecidable manual S 31 14.4744 105 0.32 71
IV.FDMO.HHZ. 2022-01-28T02:55:37.09 0.1 undecidable manual P 358 26.2515 92 -0.22 95
IV.MMO1.HNN. 2022-01-28T02:55:36.80 0.3 undecidable manual P 60 21.7671 94 0.18 72
IV.LNSS.HHZ. 2022-01-28T02:55:36.78 0.1 undecidable manual P 192 22.3554 93 0.07 98
IV.GAVE.EHZ. 2022-01-28T02:55:36.51 0.3 undecidable manual P 234 20.3685 94 0.1 73
IV.NRCA.HHZ. 2022-01-28T02:55:35.90 0.3 undecidable manual S 22 3.996 156 -0.16 75
IV.MC2.EHE. 2022-01-28T02:55:35.26 0.3 undecidable manual P 31 14.4744 105 -0.25 72
IV.NRCA.HHZ. 2022-01-28T02:55:34.41 0.1 undecidable manual P 22 3.996 156 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.0 0.00014299999999999998 0.1 AML other m 2022-01-28T02:55:36.05
IV.NRCA.HHE. ML:0.8 0.00010700000000000001 0.08 AML other m 2022-01-28T02:55:36.06
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