Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 26-10-2019 and time 09:49:29 (Italy) in region 5 km E Norcia (PG)

A magnitude ML 1.4 earthquake occured in region: 5 km E Norcia (PG), on

  • 26-10-2019 07:49:29 (UTC)
  • 26-10-2019 09:49:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7720, 13.1480 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 5 4957 4957
Accumoli RI 12 667 5624
Arquata del Tronto AP 12 1178 6802
Cascia PG 13 3217 10019
Castelsantangelo sul Nera MC 14 281 10300
Preci PG 15 724 11024
Montegallo AP 17 523 11547
Cittareale RI 17 482 12029
Visso MC 18 1107 13136
Poggiodomo PG 19 117 13253
Ussita MC 19 444 13697
Amatrice RI 20 2657 16354
Cerreto di Spoleto PG 20 1075 17429

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SE of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
47 Km NE of Terni (111501 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
72 Km SE of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km W of Pescara (121014 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
96 Km W of Chieti (51815 inhabitants)
99 Km SW of Ancona (100861 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 1.4 2019-10-26
07:49:29		 42.7725 13.1483 10 2019-10-26
07:58:05		 Sala Sismica INGV-Roma 73451831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-26 07:49:29 ± 0.05
Latitude 42.7725 ± 0.0027
Longitude 13.1483 ± 0.0049
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 73451831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 376
Semi-minor axis of confidence ellipse (meter) 52
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 280
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.06565
Epicentral distance of station farthest from the epicenter (degree) 0.32196
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 73451831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-26 07:58:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2019-10-26T07:49:41.40 0.3 undecidable manual S 7 35.742 50 0.05 71
IV.RM33.EHN. 2019-10-26T07:49:39.78 1.0 undecidable manual S 170 29.748 50 0.03 24
IV.LNSS.HHZ. 2019-10-26T07:49:37.24 0.3 undecidable manual S 205 20.7681 116 0.1 73
IV.MTRA.EHE. 2019-10-26T07:49:36.93 0.3 undecidable manual S 95 20.2686 116 -0.06 73
IV.CSP1.EHZ. 2019-10-26T07:49:36.07 0.1 undecidable manual P 7 35.742 50 -0.11 94
IV.MMO1.EHZ. 2019-10-26T07:49:36.89 0.6 undecidable manual S 46 20.1687 116 -0.08 49
IV.RM33.EHN. 2019-10-26T07:49:35.05 0.6 undecidable manual P 170 29.748 50 -0.21 47
IV.MC2.EHZ. 2019-10-26T07:49:35.89 0.3 undecidable manual S 12 15.7731 123 0.27 71
IV.SMA1.EHN. 2019-10-26T07:49:34.04 0.6 undecidable manual P 136 21.9669 115 0.08 49
IV.MMO1.EHZ. 2019-10-26T07:49:33.67 0.3 undecidable manual P 46 20.1687 116 0.01 74
IV.NRCA.HHZ. 2019-10-26T07:49:33.15 0.1 undecidable manual S 338 7.2927 144 -0.3 95
IV.LNSS.HHZ. 2019-10-26T07:49:33.82 0.3 undecidable manual P 205 20.7681 116 0.06 73
IV.MC2.EHZ. 2019-10-26T07:49:33.02 0.1 undecidable manual P 12 15.7731 123 0.14 97
IV.MTRA.EHE. 2019-10-26T07:49:33.63 0.3 undecidable manual P 95 20.2686 116 -0.04 74
IV.NRCA.HHZ. 2019-10-26T07:49:31.68 0.1 undecidable manual P 338 7.2927 144 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.2 0.0001175 0.3 AML other m 2019-10-26T07:49:37.50
IV.LNSS.HHN. ML:1.1 0.00009325 0.88 AML other m 2019-10-26T07:49:37.98
IV.FAGN.HHE. ML:1.8 0.0001265 0.48 AML other m 2019-10-26T07:49:59.23
IV.FAGN.HHN. ML:1.5 0.0000615 0.24 AML other m 2019-10-26T07:50:06.77
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