Earthquake with magnitude of ML 0.2 on date 25-05-2019 and time 23:57:08 (UTC) 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) 42.84, 13.14 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.

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
Montemonaco AP 17 604 9818
Cascia PG 17 3217 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.2 2019-05-25
23:57:08
42.84 13.14 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 42.84 ± 0.00
Longitude 13.14 ± 0.01
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
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 Takeoff_angle Residual Weight
IV.PF6.EHE. 2019-05-25T23:57:19.76 0.6 undecidable manual S 8 0.3013 90 -0.1 62
IV.CSP1.EHZ. 2019-05-25T23:57:18.56 0.3 undecidable manual S 11 0.2572 90 0.01 96
IV.LNSS.HNZ. 2019-05-25T23:57:18.37 0.3 undecidable manual S 197 0.2464 90 0.13 96
IV.CESI.HHZ. 2019-05-25T23:57:17.90 0.3 undecidable manual S 314 0.2392 90 -0.11 94
IV.FDMO.HHZ. 2019-05-25T23:57:16.73 0.6 undecidable manual S 349 0.2014 90 -0.16 62
IV.MTRA.HNZ. 2019-05-25T23:57:16.71 0.3 undecidable manual S 113 0.205 90 -0.3 91
IV.MMO1.EHZ. 2019-05-25T23:57:15.14 0.3 undecidable manual S 66 0.1502 90 -0.22 96
IV.MF5.EHE. 2019-05-25T23:57:15.21 0.3 undecidable manual P 57 0.2779 90 0.58 85
IV.LNSS.HNZ. 2019-05-25T23:57:14.23 0.3 undecidable manual P 197 0.2464 90 0.12 95
IV.PF6.EHE. 2019-05-25T23:57:14.97 0.3 undecidable manual P 8 0.3013 90 -0.08 94
IV.CSP1.EHZ. 2019-05-25T23:57:14.30 0.3 undecidable manual P 11 0.2572 90 0.01 97
IV.FDMO.HHZ. 2019-05-25T23:57:13.27 0.3 undecidable manual P 349 0.2014 90 -0.06 97
IV.MTRA.HNZ. 2019-05-25T23:57:13.40 0.3 undecidable manual P 113 0.205 90 0 98
IV.MC2.EHZ. 2019-05-25T23:57:13.74 0.3 undecidable manual S 26 0.0809 125 0.32 91
IV.CESI.HHZ. 2019-05-25T23:57:13.90 0.3 undecidable manual P 314 0.2392 90 -0.08 96
IV.MMO1.EHZ. 2019-05-25T23:57:12.42 0.3 undecidable manual P 66 0.1502 90 -0.03 99
IV.NRCA.HNZ. 2019-05-25T23:57:12.01 0.6 undecidable manual S 254 0.0198 166 -0.38 65
IV.MC2.EHZ. 2019-05-25T23:57:11.61 0.3 undecidable manual P 26 0.0809 125 0.28 93
IV.NRCA.HNZ. 2019-05-25T23:57:10.69 0.3 undecidable manual P 254 0.0198 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 6.834384E-6 0.2048 AML other m 2019-05-25T23:57:17.08
IV.FDMO.HHN. ML:0.2 7.736602E-6 0.8576 AML other m 2019-05-25T23:57:17.05
IV.CESI.HNE. ML:1.2 8.7311955E-5 2.432 AML other m 2019-05-25T23:57:18.83
IV.CESI.HHE. ML:0.4 1.3394215E-5 0.2048 AML other m 2019-05-25T23:57:17.99
IV.CESI.HHN. ML:0.6 1.79528E-5 0.1408 AML other m 2019-05-25T23:57:18.23
IV.CSP1.EHE. ML:0.3 9.991364E-6 0.896 AML other m 2019-05-25T23:57:19.35
IV.CSP1.EHN. ML:0.5 1.518505E-5 2.112 AML other m 2019-05-25T23:57:20.06
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download