Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.2 on date 26-05-2019 and time 01:57:08 (Italy) in region 6 km NE Norcia (PG)

A magnitude ML 0.2 earthquake occured in region: 6 km NE Norcia (PG), on

  • 25-05-2019 23:57:08 (UTC)
  • 26-05-2019 01:57:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8390, 13.1400 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
Norcia PG 6 4957 4957
Castelsantangelo sul Nera MC 6 281 5238
Preci PG 9 724 5962
Visso MC 11 1107 7069
Ussita MC 12 444 7513
Arquata del Tronto AP 15 1178 8691
Montegallo AP 16 523 9214
Cascia PG 17 3217 12431
Montemonaco AP 17 604 13035
Accumoli RI 18 667 13702
Sellano PG 18 1079 14781
Cerreto di Spoleto PG 18 1075 15856
Bolognola MC 19 142 15998

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
50 Km W of Teramo (54892 inhabitants)
51 Km NE of Terni (111501 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NW of Chieti (51815 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 0.2 2019-05-25
23:57:08		 42.8388 13.1397 11 2019-05-26
00:04:36		 Sala Sismica INGV-Roma 68891251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-25 23:57:08 ± 0.07
Latitude 42.8388 ± 0.0036
Longitude 13.1397 ± 0.0061
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 68891251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 473
Semi-minor axis of confidence ellipse (meter) 390
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.01979
Epicentral distance of station farthest from the epicenter (degree) 0.30127
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 68891251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-26 00:04:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PF6.EHE. 2019-05-25T23:57:19.76 0.6 undecidable manual S 8 33.4443 90 -0.1 62
IV.CSP1.EHZ. 2019-05-25T23:57:18.56 0.3 undecidable manual S 11 28.5492 90 0.01 96
IV.LNSS.HNZ. 2019-05-25T23:57:18.37 0.3 undecidable manual S 197 27.3504 90 0.13 96
IV.CESI.HHZ. 2019-05-25T23:57:17.90 0.3 undecidable manual S 314 26.5512 90 -0.11 94
IV.FDMO.HHZ. 2019-05-25T23:57:16.73 0.6 undecidable manual S 349 22.3554 90 -0.16 62
IV.MTRA.HNZ. 2019-05-25T23:57:16.71 0.3 undecidable manual S 113 22.755 90 -0.3 91
IV.MMO1.EHZ. 2019-05-25T23:57:15.14 0.3 undecidable manual S 66 16.6722 90 -0.22 96
IV.MF5.EHE. 2019-05-25T23:57:15.21 0.3 undecidable manual P 57 30.8469 90 0.58 85
IV.LNSS.HNZ. 2019-05-25T23:57:14.23 0.3 undecidable manual P 197 27.3504 90 0.12 95
IV.PF6.EHE. 2019-05-25T23:57:14.97 0.3 undecidable manual P 8 33.4443 90 -0.08 94
IV.CSP1.EHZ. 2019-05-25T23:57:14.30 0.3 undecidable manual P 11 28.5492 90 0.01 97
IV.FDMO.HHZ. 2019-05-25T23:57:13.27 0.3 undecidable manual P 349 22.3554 90 -0.06 97
IV.MTRA.HNZ. 2019-05-25T23:57:13.40 0.3 undecidable manual P 113 22.755 90 0 98
IV.MC2.EHZ. 2019-05-25T23:57:13.74 0.3 undecidable manual S 26 8.9799 125 0.32 91
IV.CESI.HHZ. 2019-05-25T23:57:13.90 0.3 undecidable manual P 314 26.5512 90 -0.08 96
IV.MMO1.EHZ. 2019-05-25T23:57:12.42 0.3 undecidable manual P 66 16.6722 90 -0.03 99
IV.NRCA.HNZ. 2019-05-25T23:57:12.01 0.6 undecidable manual S 254 2.1978 166 -0.38 65
IV.MC2.EHZ. 2019-05-25T23:57:11.61 0.3 undecidable manual P 26 8.9799 125 0.28 93
IV.NRCA.HNZ. 2019-05-25T23:57:10.69 0.3 undecidable manual P 254 2.1978 166 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:-0.1 0.000006834384 0.2048 AML other m 2019-05-25T23:57:17.08
IV.FDMO.HHN. ML:0.2 0.000007736602 0.8576 AML other m 2019-05-25T23:57:17.05
IV.CSP1.EHE. ML:0.3 0.000009991363999999999 0.896 AML other m 2019-05-25T23:57:19.35
IV.CSP1.EHN. ML:0.5 0.000015185049999999998 2.112 AML other m 2019-05-25T23:57:20.06
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