Earthquake with magnitude of ML 1.5 on date 18-05-2020 and time 22:24:44 (Italy) in region 2 km W Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 2 km W Norcia (PG), on

  • 18-05-2020 20:24:44 (UTC)
  • 18-05-2020 22:24:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8, 13.07 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 2 4957 4957
Preci PG 10 724 5681
Cascia PG 10 3217 8898
Cerreto di Spoleto PG 13 1075 9973
Castelsantangelo sul Nera MC 13 281 10254
Poggiodomo PG 15 117 10371
Visso MC 15 1107 11478
Sellano PG 16 1079 12557
Vallo di Nera PG 17 364 12921
Ussita MC 17 444 13365
Accumoli RI 18 667 14032
Arquata del Tronto AP 19 1178 15210
Monteleone di Spoleto PG 19 599 15809

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SE of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
65 Km SE of Perugia (166134 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
98 Km SW of Ancona (100861 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
Reviewed
Rev100
ML 1.5 2020-05-18
20:24:44
42.8 13.07 11 2020-05-18
20:31:27
Sala Sismica INGV-Roma 79291901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-18 20:24:44 ± 0.07
Latitude 42.80 ± 0.00
Longitude 13.07 ± 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 79291901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 516
Semi-minor axis of confidence ellipse (meter) 237
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32915
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 79291901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-18 20:31:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2020-05-18T20:25:09.97 3.0 undecidable manual S 0.29 0
IV.EL6.EHZ. 2020-05-18T20:25:03.42 3.0 undecidable manual S -0.51 0
IV.CESX.HHZ. 2020-05-18T20:24:59.41 3.0 undecidable manual S -0.14 0
IV.FRON.EHZ. 2020-05-18T20:24:59.16 3.0 undecidable manual P -0.43 0
IV.ARVD.HHZ. 2020-05-18T20:24:58.12 3.0 undecidable manual P -0.43 0
IV.GUMA.HHZ. 2020-05-18T20:24:57.14 0.3 undecidable manual S 36 0.3292 50 0.5 65
IV.SSFR.HHZ. 2020-05-18T20:24:57.64 3.0 negative manual P -0.28 0
IV.MNTT.EHZ. 2020-05-18T20:24:55.02 3.0 negative manual P 0.93 0
IV.RM33.EHZ. 2020-05-18T20:24:55.90 0.3 undecidable manual S 160 0.3067 50 -0.09 72
IV.EL6.EHZ. 2020-05-18T20:24:54.95 3.0 positive manual P -0.37 0
IV.ATCC.EHZ. 2020-05-18T20:24:54.53 3.0 undecidable manual P -0.19 0
IV.CESI.HHZ. 2020-05-18T20:24:54.13 0.1 undecidable manual S 330 0.2401 50 0.11 96
IV.FDMO.HHZ. 2020-05-18T20:24:53.92 0.1 undecidable manual S 3 0.2392 50 -0.07 97
IV.SNTG.HHZ. 2020-05-18T20:24:53.90 3.0 negative manual P -0.22 0
IV.T1299.EHN. 2020-05-18T20:24:53.93 0.1 undecidable manual S 136 0.2248 50 0.36 92
IT.MTCL.HGZ. 2020-05-18T20:24:52.78 0.1 undecidable manual S 345 0.2032 50 -0.14 97
IV.TERO.HHZ. 2020-05-18T20:24:52.94 3.0 undecidable manual P -0.39 0
IV.MMO1.EHZ. 2020-05-18T20:24:52.69 0.3 undecidable manual S 61 0.214 50 -0.55 66
IV.MOMA.HHZ. 2020-05-18T20:24:52.73 3.0 negative manual P 0.49 0
IV.LNSS.HHZ. 2020-05-18T20:24:52.59 0.3 undecidable manual S 186 0.1952 50 -0.09 73
IV.MF5.EHZ. 2020-05-18T20:24:52.11 3.0 negative manual P 0.31 0
IV.ARRO.EHZ. 2020-05-18T20:24:51.55 0.3 undecidable manual P 226 0.3121 50 0.38 67
IV.FEMA.HNE. 2020-05-18T20:24:51.64 0.3 undecidable manual S 355 0.1655 120 -0.13 73
IV.CSP1.EHZ. 2020-05-18T20:24:51.09 3.0 positive manual P -0.13 0
IV.GUMA.HHZ. 2020-05-18T20:24:51.68 0.1 undecidable manual P 36 0.3292 50 0.22 93
IV.MC2.EHN. 2020-05-18T20:24:51.18 0.1 undecidable manual S 37 0.1439 124 0.12 98
IV.RM33.EHZ. 2020-05-18T20:24:50.82 0.1 undecidable manual P 160 0.3067 50 -0.26 92
IV.FDMO.HHZ. 2020-05-18T20:24:49.86 0.1 positive manual P 3 0.2392 50 -0.07 97
IV.LNSS.HHZ. 2020-05-18T20:24:49.07 0.1 positive manual P 186 0.1952 50 -0.1 97
IV.MTRA.EHZ. 2020-05-18T20:24:49.88 3.0 negative manual P -0.04 0
IV.T1299.EHN. 2020-05-18T20:24:49.63 0.1 undecidable manual P 136 0.2248 50 -0.05 98
IT.MTCL.HGZ. 2020-05-18T20:24:49.23 0.1 undecidable manual P 345 0.2032 50 -0.08 98
IV.MMO1.EHZ. 2020-05-18T20:24:49.36 0.1 undecidable manual P 61 0.214 50 -0.13 97
IV.CESI.HHZ. 2020-05-18T20:24:49.98 0.1 positive manual P 330 0.2401 50 0.03 98
IV.MC2.EHN. 2020-05-18T20:24:48.37 0.1 undecidable manual P 37 0.1439 124 0.14 98
IV.FEMA.HNE. 2020-05-18T20:24:48.67 0.1 undecidable manual P 355 0.1655 120 0.03 100
IV.NRCA.HHZ. 2020-05-18T20:24:48.38 0.1 undecidable manual S 42 0.0486 153 -0.18 99
IV.NRCA.HHZ. 2020-05-18T20:24:46.91 0.1 undecidable manual P 42 0.0486 153 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.6 0.005995 0.12 AML other m 2020-05-18T20:24:48.48
IV.NRCA.HHN. ML:2.6 0.006575 0.14 AML other m 2020-05-18T20:24:48.48
IV.NRCA.HNE. ML:2.4 0.00357 0.12 AML other m 2020-05-18T20:24:48.64
IV.NRCA.HHE. ML:2.4 0.00386 0.12 AML other m 2020-05-18T20:24:48.64
IV.LNSS.HHN. ML:1.8 0.000433 0.28 AML other m 2020-05-18T20:24:53.16
IV.LNSS.HHE. ML:1.7 0.0003485 0.12 AML other m 2020-05-18T20:24:53.58
IV.FDMO.HHE. ML:1.4 0.000134 0.88 AML other m 2020-05-18T20:24:54.10
IV.FDMO.HHN. ML:1.5 0.00016 1.08 AML other m 2020-05-18T20:24:54.05
IV.CESI.HHE. ML:1.5 0.0001695 1 AML other m 2020-05-18T20:24:54.82
IV.CESI.HHN. ML:1.6 0.0002335 0.94 AML other m 2020-05-18T20:24:55.67
IV.MTRA.EHE. ML:1.6 0.0002295 0.88 AML other m 2020-05-18T20:24:55.76
IV.MTRA.EHN. ML:1.4 0.00015 0.16 AML other m 2020-05-18T20:24:55.42
IV.RM33.EHN. ML:1.6 0.000164 1.68 AML other m 2020-05-18T20:24:57.84
IV.RM33.EHE. ML:1.5 0.0001225 0.12 AML other m 2020-05-18T20:24:57.00
IV.CSP1.EHE. ML:1.7 0.000191 0.26 AML other m 2020-05-18T20:24:57.17
IV.GUMA.HHE. ML:1.7 0.000185 0.5 AML other m 2020-05-18T20:24:57.59
IV.ARRO.EHE. ML:1.4 8.81E-5 0.56 AML other m 2020-05-18T20:24:57.83
IV.CSP1.EHN. ML:1.7 0.0001885 0.88 AML other m 2020-05-18T20:24:58.95
IV.ARRO.EHN. ML:1.3 7.73E-5 0.14 AML other m 2020-05-18T20:24:58.78
IV.TERO.HHE. ML:1.3 4.97E-5 0.3 AML other m 2020-05-18T20:24:59.77
IV.CESX.HHN. ML:1.3 5.53E-5 0.42 AML other m 2020-05-18T20:24:59.63
IV.MOMA.HHE. ML:1.3 7.215E-5 0.18 AML other m 2020-05-18T20:24:59.84
IV.GUMA.HHN. ML:1.7 0.0002 1.42 AML other m 2020-05-18T20:25:00.08
IV.TERO.HHN. ML:1.5 8.75E-5 1.46 AML other m 2020-05-18T20:25:00.08
IV.CESX.HHE. ML:1.3 5.57E-5 0.26 AML other m 2020-05-18T20:25:01.28
IV.MOMA.HHN. ML:1.2 5.05E-5 0.18 AML other m 2020-05-18T20:25:01.32
IV.SNTG.HHN. ML:1.2 3.355E-5 0.1 AML other m 2020-05-18T20:25:03.22
IV.MNTT.EHE. ML:1.8 0.0001505 0.78 AML other m 2020-05-18T20:25:03.49
IV.EL6.EHE. ML:1.5 6.25E-5 1.52 AML other m 2020-05-18T20:25:04.92
IV.ATCC.EHE. ML:1.3 4.835E-5 1.2 AML other m 2020-05-18T20:25:04.31
IV.SNTG.HHE. ML:1.2 3.32E-5 0.1 AML other m 2020-05-18T20:25:04.50
IV.ATCC.EHN. ML:1.4 5.475E-5 0.66 AML other m 2020-05-18T20:25:05.16
IV.MNTT.EHN. ML:1.8 0.0001755 0.9 AML other m 2020-05-18T20:25:05.90
IV.EL6.EHN. ML:1.6 7.32E-5 0.14 AML other m 2020-05-18T20:25:05.72
IV.ARVD.HHN. ML:1 1.695E-5 0.5 AML other m 2020-05-18T20:25:10.06
IV.SSFR.HHE. ML:1.6 6.305E-5 0.62 AML other m 2020-05-18T20:25:10.37
IV.ARVD.HHE. ML:1.2 2.005E-5 0.56 AML other m 2020-05-18T20:25:10.08
IV.SSFR.HHN. ML:1.6 6.23E-5 0.18 AML other m 2020-05-18T20:25:11.75
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