Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 12-04-2020 and time 16:41:17 (Italy) in region 8 km NE Trevi (PG)

A magnitude ML 0.7 earthquake occured in region: 8 km NE Trevi (PG), on

  • 12-04-2020 14:41:17 (UTC)
  • 12-04-2020 16:41:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9250, 12.8240 at 11 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
Trevi PG 8 8469 8469
Sellano PG 9 1079 9548
Foligno PG 10 57155 66703
Campello sul Clitunno PG 12 2442 69145
Cerreto di Spoleto PG 14 1075 70220
Montefalco PG 14 5679 75899
Spello PG 15 8645 84544
Valtopina PG 16 1398 85942
Monte Cavallo MC 17 145 86087
Castel Ritaldi PG 17 3278 89365
Bevagna PG 17 5081 94446
Vallo di Nera PG 18 364 94810
Preci PG 18 724 95534
Serravalle di Chienti MC 20 1070 96604

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of Foligno (57155 inhabitants)
41 Km SE of Perugia (166134 inhabitants)
43 Km NE of Terni (111501 inhabitants)
78 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
81 Km NE of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km SE of Arezzo (99543 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 2020-04-12
14:41:17		 42.925 12.8235 11 2020-04-12
14:47:29		 Sala Sismica INGV-Roma 78146731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-12 14:41:17 ± 0.06
Latitude 42.9250 ± 0.0036
Longitude 12.8235 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78146731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 447
Semi-minor axis of confidence ellipse (meter) 222
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 148
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.09982
Epicentral distance of station farthest from the epicenter (degree) 0.34084
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 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 78146731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-12 14:47:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-04-12T14:41:30.28 0.3 undecidable manual S 59 36.0417 50 0.22 71
IV.SNTG.HHZ. 2020-04-12T14:41:30.51 0.6 undecidable manual S 14 37.8288 50 -0.03 49
IV.ATCC.EHZ. 2020-04-12T14:41:29.21 0.3 undecidable manual S 333 32.4453 50 0.1 73
IV.FDMO.HHZ. 2020-04-12T14:41:26.84 0.3 undecidable manual S 60 24.753 50 -0.2 72
IV.MOMA.HHZ. 2020-04-12T14:41:26.93 0.3 undecidable manual S 237 24.5532 50 -0.08 74
IV.CSP1.EHZ. 2020-04-12T14:41:25.03 0.1 undecidable manual P 59 36.0417 50 0.09 97
IV.SNTG.HHZ. 2020-04-12T14:41:25.09 0.1 undecidable manual P 14 37.8288 50 -0.13 95
IV.ATCC.EHZ. 2020-04-12T14:41:24.34 0.1 undecidable manual P 333 32.4453 50 -0.05 98
IT.MTCL.HGE. 2020-04-12T14:41:24.56 0.3 undecidable manual S 62 16.1727 124 -0.17 74
IV.MOMA.HHZ. 2020-04-12T14:41:23.20 0.1 undecidable manual P 237 24.5532 50 0.02 100
IV.CESI.HHZ. 2020-04-12T14:41:23.27 0.3 undecidable manual S 37 11.0778 135 -0.07 76
IV.FDMO.HHZ. 2020-04-12T14:41:23.21 0.1 undecidable manual P 60 24.753 50 0.01 100
IT.MTCL.HGE. 2020-04-12T14:41:21.97 0.1 undecidable manual P 62 16.1727 124 0.11 100
IV.CESI.HHZ. 2020-04-12T14:41:21.19 0.1 undecidable manual P 37 11.0778 135 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.0 0.0001215 0.52 AML other m 2020-04-12T14:41:23.49
IV.CESI.HHE. ML:0.8 0.0000688 0.08 AML other m 2020-04-12T14:41:23.59
IV.FDMO.HHN. ML:0.6 0.000022800000000000002 1.28 AML other m 2020-04-12T14:41:27.32
IV.FDMO.HHE. ML:0.6 0.0000273 0.9 AML other m 2020-04-12T14:41:27.55
IV.MOMA.HHN. ML:0.5 0.000018595 0.9 AML other m 2020-04-12T14:41:28.52
IV.MOMA.HHE. ML:0.5 0.0000224 1.06 AML other m 2020-04-12T14:41:28.08
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