INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 22-09-2018 and time 06:11:49 (Italy) in region 7 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.0 earthquake occured in region: 7 km SE Castelsantangelo sul Nera (MC), on

  • 22-09-2018 04:11:49 (UTC)
  • 22-09-2018 06:11:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.84, 13.19 at 13 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
Castelsantangelo sul Nera MC 7 281 281
Norcia PG 9 4957 5238
Arquata del Tronto AP 11 1178 6416
Montegallo AP 11 523 6939
Ussita MC 13 444 7383
Montemonaco AP 13 604 7987
Preci PG 14 724 8711
Visso MC 14 1107 9818
Accumoli RI 16 667 10485
Montefortino FM 17 1178 11663
Bolognola MC 18 142 11805
Acquasanta Terme AP 19 2916 14721
Cascia PG 20 3217 17938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
54 Km NE of Terni (111501 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
93 Km W of Pescara (121014 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 1.0 2018-09-22
04:11:49
42.84 13.19 13 2018-09-22
04:20:14
Sala Sismica INGV-Roma 61195101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-22 04:11:49 ± 0.11
Latitude 42.84 ± 0.00
Longitude 13.19 ± 0.01
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 61195101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 473
Semi-minor axis of confidence ellipse (meter) 383
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
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) 91
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36872
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 61195101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-22 04:20:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CLTA.HHZ. 2018-09-22T04:13:10.22 3.0 undecidable manual Pn -1.2 0
IV.IACL.HHZ. 2018-09-22T04:13:08.32 3.0 negative manual Pg 15.28 0
IV.MRGE.HHZ. 2018-09-22T04:13:02.37 3.0 undecidable manual Pn 7.63 0
MN.CUC.HHZ. 2018-09-22T04:12:54.78 3.0 positive manual Pg 16.709999 0
IV.MILN.HHZ. 2018-09-22T04:12:53.74 3.0 undecidable manual Pg 19.41 0
IV.SBPO.HNZ. 2018-09-22T04:12:47.20 3.0 undecidable manual Sn -0.61 0
IV.CAVE.HHZ. 2018-09-22T04:12:43.97 3.0 undecidable manual Sn 0.1 0
RD.PGF.BHZ. 2018-09-22T04:12:38.54 3.0 undecidable manual Pn 7.14 0
IV.RIBO.EHZ.01 2018-09-22T04:12:34.33 3.0 undecidable manual Sn -0.02 0
CR.STON.BHZ. 2018-09-22T04:12:33.46 3.0 undecidable manual Pn 5.81 0
IV.VIVA.HHZ. 2018-09-22T04:12:32.90 3.0 undecidable manual Sn -0.38 0
IV.CERT.HHZ. 2018-09-22T04:12:29.62 3.0 undecidable manual S 2.01 0
IV.OFFI.HHZ. 2018-09-22T04:11:58.10 3.0 undecidable manual S -1.67 0
IV.FDMO.HHZ. 2018-09-22T04:11:57.83 0.3 undecidable manual S 339 0.2149 98 -0.28 71
IV.MTRA.EHZ. 2018-09-22T04:11:56.71 0.3 undecidable manual S 118 0.1682 104 -0.03 74
IV.TERO.HHZ. 2018-09-22T04:11:56.85 0.3 undecidable manual P 125 0.3687 93 -0.13 70
IV.RM33.EHZ. 2018-09-22T04:11:56.48 0.3 undecidable manual P 177 0.3274 94 0.21 69
IV.MF5.EHZ. 2018-09-22T04:11:55.15 0.3 undecidable manual P 52 0.2464 96 0.25 70
IV.MMO1.EHZ. 2018-09-22T04:11:55.09 0.3 undecidable manual S 57 0.116 119 -0.21 72
IV.FDMO.HHZ. 2018-09-22T04:11:54.18 0.3 undecidable manual P 339 0.2149 98 -0.19 72
IV.MC2.EHZ. 2018-09-22T04:11:54.53 0.3 undecidable manual S 357 0.0755 136 0.19 73
IV.CSP1.EHZ. 2018-09-22T04:11:54.96 3.0 undecidable manual S -0.59 0
IV.SMA1.EHZ. 2018-09-22T04:11:54.55 0.3 undecidable manual P 153 0.2302 97 -0.06 73
IV.NRCA.HHZ. 2018-09-22T04:11:53.93 0.3 undecidable manual S 268 0.0585 145 -0.09 75
IV.MTRA.EHZ. 2018-09-22T04:11:53.57 0.3 undecidable manual P 118 0.1682 104 0 75
IV.MMO1.EHZ. 2018-09-22T04:11:52.67 0.1 undecidable manual P 57 0.116 119 -0.07 99
IV.NRCA.HHZ. 2018-09-22T04:11:52.09 0.1 undecidable manual P 268 0.0585 145 0.09 100
IV.MC2.EHZ. 2018-09-22T04:11:52.36 0.1 undecidable manual P 357 0.0755 136 0.17 98
IV.FOSV.EHZ. 2018-09-22T04:11:50.84 3.0 negative manual P 0.55 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.4 0.0003205 1.46 AML other m 2018-09-22T04:11:53.21
IV.NRCA.HHE. ML:1.6 0.0005755 0.3 AML other m 2018-09-22T04:11:54.03
IV.NRCA.HNE. ML:1.6 0.000534 0.3 AML other m 2018-09-22T04:11:54.03
IV.NRCA.HNN. ML:1.4 0.000317 1.06 AML other m 2018-09-22T04:11:54.31
IV.FDMO.HHN. ML:0.5 2.025E-5 0.18 AML other m 2018-09-22T04:11:58.35
IV.SMA1.EHN. ML:0.8 3.43E-5 1.08 AML other m 2018-09-22T04:11:58.15
IV.FDMO.HHE. ML:0.5 1.9775E-5 1.1 AML other m 2018-09-22T04:11:58.93
IV.SMA1.EHE. ML:0.8 3.39E-5 0.6 AML other m 2018-09-22T04:12:00.23
IV.TERO.HHN. ML:1 3.2E-5 1.38 AML other m 2018-09-22T04:12:03.95
IV.TERO.HHE. ML:1 2.955E-5 1.1 AML other m 2018-09-22T04:12:03.34
IV.VIVA.HHN. ML:2.6 0.0002795 0.2 AML other m 2018-09-22T04:12:38.60
IV.VIVA.HHE. ML:2.9 0.000503 0.06 AML other m 2018-09-22T04:12:40.32
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