Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 27-03-2022 and time 21:28:41 (UTC) in region 4 km E Valtopina (PG)

A magnitude ML 0.7 earthquake occured in region: 4 km E Valtopina (PG), on

  • 27-03-2022 21:28:41 (UTC)
  • 27-03-2022 23:28:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0510, 12.8050 at 11 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
Valtopina PG 4 1398 1398
Nocera Umbra PG 7 5839 7237
Serravalle di Chienti MC 12 1070 8307
Spello PG 13 8645 16952
Foligno PG 13 57155 74107
Assisi PG 16 28299 102406
Sefro MC 16 422 102828
Monte Cavallo MC 17 145 102973
Fiuminata MC 19 1402 104375
Cannara PG 19 4305 108680
Trevi PG 20 8469 117149
Muccia MC 20 915 118064

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NE of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
56 Km N of Terni (111501 inhabitants)
85 Km NW of Teramo (54892 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
88 Km SE of Arezzo (99543 inhabitants)
90 Km S of Fano (60888 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
96 Km S of Pesaro (94582 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 0.7 2022-03-27
21:28:41		 43.0507 12.805 11 2022-07-08
12:33:50		 Bollettino Sismico Italiano INGV 103796381
Reviewed
Rev100 		ML 0.7 2022-03-27
21:28:41		 43.056 12.8058 11 2022-03-27
21:33:00		 Sala Sismica INGV-Roma 102478871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-27 21:28:41 ± 0.04
Latitude 43.0507 ± 0.0027
Longitude 12.8050 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 103796381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 254
Semi-minor axis of confidence ellipse (meter) 251
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.47934
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 102478871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-27 21:33:00

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 103796381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-04-26 10:47:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HNZ. 2022-03-27T21:28:58.08 0.6 undecidable manual S 159 53.2023 50 0.35 44
IV.SSFR.HHZ. 2022-03-27T21:28:54.97 0.3 undecidable manual S 358 42.8238 50 0.02 71
IV.EL6.EHZ. 2022-03-27T21:28:54.13 0.3 undecidable manual S 38 39.1275 50 0.16 70
IV.MOMA.HHZ. 2022-03-27T21:28:52.53 0.3 undecidable manual S 215 33.3444 50 0.1 71
IV.CSP1.EHZ. 2022-03-27T21:28:52.61 0.3 undecidable manual S 82 32.745 50 0.35 68
IV.NRCA.HHZ. 2022-03-27T21:28:52.71 0.3 undecidable manual S 134 34.743 50 -0.1 71
IV.PF6.EHN. 2022-03-27T21:28:52.32 0.6 undecidable manual S 73 32.9448 50 -0.01 48
IV.SNTG.HHZ. 2022-03-27T21:28:50.02 0.3 undecidable manual S 26 25.1526 50 -0.22 71
IV.LNSS.HNZ. 2022-03-27T21:28:50.41 0.1 undecidable manual P 159 53.2023 50 -0.27 89
IV.ATCC.EHZ. 2022-03-27T21:28:49.05 0.3 undecidable manual S 318 20.0688 50 0.18 72
IV.SSFR.HHZ. 2022-03-27T21:28:49.40 0.1 undecidable manual P 358 42.8238 50 0.32 89
IV.FDMO.HHZ. 2022-03-27T21:28:49.67 0.3 undecidable manual S 94 22.9548 50 0.03 74
IV.EL6.EHZ. 2022-03-27T21:28:48.42 0.1 undecidable manual P 38 39.1275 50 -0.09 94
IV.MML1.EHZ. 2022-03-27T21:28:47.43 0.3 undecidable manual S 63 15.1737 126 -0.13 73
IV.MOMA.HHZ. 2022-03-27T21:28:47.53 0.1 undecidable manual P 215 33.3444 50 -0.09 95
IV.CSP1.EHZ. 2022-03-27T21:28:47.47 0.3 undecidable manual P 82 32.745 50 -0.05 72
IV.NRCA.HHZ. 2022-03-27T21:28:47.62 0.3 undecidable manual P 134 34.743 50 -0.22 69
IV.PF6.EHN. 2022-03-27T21:28:47.61 0.1 undecidable manual P 73 32.9448 50 0.05 96
IV.ASSB.HHZ. 2022-03-27T21:28:46.61 0.3 undecidable manual S 266 11.877 133 -0.06 75
IV.SNTG.HHZ. 2022-03-27T21:28:46.11 0.1 undecidable manual P 26 25.1526 50 -0.25 94
IV.CESI.HHZ. 2022-03-27T21:28:46.30 0.3 undecidable manual S 122 9.4794 139 0.2 73
IV.FDMO.HHZ. 2022-03-27T21:28:45.88 0.1 undecidable manual P 94 22.9548 50 -0.13 96
IV.ATCC.EHZ. 2022-03-27T21:28:45.47 0.3 undecidable manual P 318 20.0688 50 -0.09 73
IV.CESI.HHZ. 2022-03-27T21:28:44.09 0.1 undecidable manual P 122 9.4794 139 0.13 98
IV.ASSB.HHZ. 2022-03-27T21:28:44.33 0.1 undecidable manual P 266 11.877 133 0.04 100
IV.MML1.EHZ. 2022-03-27T21:28:44.76 0.3 undecidable manual P 63 15.1737 126 -0.05 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:0.9 0.00008094999999999999 0.16 AML other m 2022-03-27T21:28:46.90
IV.ASSB.HHE. ML:0.8 0.00007595 1.74 AML other m 2022-03-27T21:28:47.93
IV.MML1.EHE. ML:0.6 0.000039349999999999994 0.14 AML other m 2022-03-27T21:28:47.76
IV.MML1.EHN. ML:0.7 0.0000426 0.18 AML other m 2022-03-27T21:28:47.78
IV.NRCA.HHN. ML:0.7 0.000018100000000000003 1.04 AML other m 2022-03-27T21:28:53.35
IV.NRCA.HHE. ML:0.6 0.000015385 0.46 AML other m 2022-03-27T21:28:55.01
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