Earthquake with magnitude of ML 0.9 on date 21-07-2019 and time 16:48:35 (UTC) in region 6 km S Castelsantangelo sul Nera (MC)

A magnitude ML 0.9 earthquake occured in region: 6 km S Castelsantangelo sul Nera (MC), on

  • 21-07-2019 16:48:35 (UTC)
  • 21-07-2019 18:48:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.84, 13.16 at 9 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 6 281 281
Norcia PG 7 4957 5238
Preci PG 11 724 5962
Visso MC 12 1107 7069
Ussita MC 12 444 7513
Arquata del Tronto AP 14 1178 8691
Montegallo AP 14 523 9214
Montemonaco AP 16 604 9818
Accumoli RI 18 667 10485
Cascia PG 18 3217 13702
Bolognola MC 18 142 13844
Montefortino FM 19 1178 15022
Sellano PG 20 1079 16101
Cerreto di Spoleto PG 20 1075 17176

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
49 Km W of Teramo (54892 inhabitants)
52 Km NE of Terni (111501 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 Km E of Viterbo (67173 inhabitants)
99 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 0.9 2019-07-21
16:48:35
42.84 13.16 9 2019-07-21
17:19:39
Sala Sismica INGV-Roma 70774901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-21 16:48:35 ± 0.12
Latitude 42.84 ± 0.01
Longitude 13.16 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70774901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 689
Semi-minor axis of confidence ellipse (meter) 441
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
Circular confidence region, given by single value of horizontal uncertainty (meter) 690
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.3984
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.6
Num. used stations 4
Type of magnitude ML
Reference to an origin 70774901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-21 17:19:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.FUORN.HHZ. 2019-07-21T16:50:22.78 3.0 undecidable manual Sn -0.86 0
GU.STV.HHZ. 2019-07-21T16:50:15.79 3.0 undecidable manual Sn 2.19 0
IV.MILN.HNZ. 2019-07-21T16:50:14.64 3.0 undecidable manual Sg 7.55 0
CH.BERNI.HHZ. 2019-07-21T16:50:11.60 3.0 undecidable manual Sn -8.76 0
GU.GBOS.HHZ. 2019-07-21T16:50:04.44 3.0 undecidable manual Sn -1.06 0
IV.MAGA.HHZ. 2019-07-21T16:49:56.10 3.0 undecidable manual Sn -6 0
IV.LINA.HHZ. 2019-07-21T16:49:55.25 3.0 negative manual Pn -3.91 0
SL.KOGS.BHZ. 2019-07-21T16:49:52.77 3.0 undecidable manual Pg 14.95 0
IV.EPZF.HHZ. 2019-07-21T16:49:46.63 3.0 undecidable manual Pg 8.76 0
IV.CRJA.HHZ. 2019-07-21T16:49:40.18 3.0 undecidable manual Pg 7.21 0
IV.PLMA.HHZ. 2019-07-21T16:49:39.79 3.0 undecidable manual Sg 6.1 0
IV.EUCT.HNZ. 2019-07-21T16:49:21.42 3.0 negative manual Pn 2.08 0
IT.ORP.HGZ. 2019-07-21T16:49:07.01 3.0 negative manual Pn 3.07 0
IX.MNT3.HHZ.02 2019-07-21T16:49:06.44 3.0 negative manual Pn 1.49 0
IV.LRP.EHZ. 2019-07-21T16:49:01.30 3.0 undecidable manual S -3.06 0
GU.CARD.HHZ. 2019-07-21T16:48:57.36 3.0 undecidable manual Pn -1.12 0
GU.GSCL.HHZ. 2019-07-21T16:48:57.47 3.0 negative manual Pn -4.01 0
IV.OFFI.HHZ. 2019-07-21T16:48:50.37 0.3 undecidable manual S 76 0.3984 50 0.38 66
IV.LRP.EHZ. 2019-07-21T16:48:46.88 3.0 undecidable manual P 0.36 0
IV.GAVE.EHZ. 2019-07-21T16:48:45.04 1.0 undecidable manual S 233 0.2419 109 -0.17 24
IV.RMP.HHZ. 2019-07-21T16:48:45.91 3.0 undecidable manual S -1.34 0
IV.MTRA.EHZ. 2019-07-21T16:48:43.12 0.6 undecidable manual S 115 0.1934 114 -0.34 46
IV.MF5.EHZ. 2019-07-21T16:48:43.24 3.0 negative manual P -1.07 0
IV.FDMO.HHZ. 2019-07-21T16:48:43.72 0.6 undecidable manual S 346 0.205 112 -0.15 48
IV.OFFI.HHZ. 2019-07-21T16:48:43.30 0.1 undecidable manual P 76 0.3984 50 -0.5 86
IT.MTCL.HGE. 2019-07-21T16:48:43.27 0.6 undecidable manual S 323 0.1943 113 -0.21 47
IV.GAVE.EHZ. 2019-07-21T16:48:41.31 0.1 undecidable manual P 233 0.2419 109 0.27 93
IV.MMO1.EHZ. 2019-07-21T16:48:41.44 0.6 undecidable manual S 64 0.1385 121 -0.14 49
IV.MTRA.EHZ. 2019-07-21T16:48:40.27 0.6 undecidable manual P 115 0.1934 114 0.24 47
IV.MC2.EHE. 2019-07-21T16:48:40.09 0.6 undecidable manual S 17 0.0764 138 0.36 47
IV.FDMO.HHZ. 2019-07-21T16:48:40.36 1.0 positive manual P 346 0.205 112 0.1 24
IT.MTCL.HGE. 2019-07-21T16:48:39.90 0.1 undecidable manual P 323 0.1943 113 -0.14 96
IV.NRCA.HHZ. 2019-07-21T16:48:38.40 0.6 undecidable manual S 262 0.0324 159 -0.41 47
IV.MC2.EHE. 2019-07-21T16:48:38.39 0.3 undecidable manual P 17 0.0764 138 0.52 68
IV.MMO1.EHZ. 2019-07-21T16:48:38.65 1.0 positive manual P 64 0.1385 121 -0.29 24
IV.RCAV.EHZ. 2019-07-21T16:48:38.42 3.0 negative manual P 0.05 0
IV.NRCA.HHZ. 2019-07-21T16:48:37.44 0.1 undecidable manual P 262 0.0324 159 0.1 100
IV.TOLF.HHZ. 2019-07-21T16:48:31.67 3.0 negative manual P -0.06 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.5 0.000558 0.16 AML other m 2019-07-21T16:48:38.65
IV.NRCA.HHN. ML:1.4 0.000449 1.1 AML other m 2019-07-21T16:48:39.09
IV.FDMO.HHN. ML:0.5 2.025E-5 0.94 AML other m 2019-07-21T16:48:44.51
IV.FDMO.HHE. ML:0.4 1.45E-5 0.24 AML other m 2019-07-21T16:48:44.60
GU.CARD.HHN. ML:2.5 5.44E-5 0.14 AML other m 2019-07-21T16:49:02.46
IX.MNT3.HNN.01 ML:3.2 0.00027775 0.86 AML other m 2019-07-21T16:49:06.04
GU.CARD.HHE. ML:2.5 5.255E-5 0.08 AML other m 2019-07-21T16:49:12.40
IX.MNT3.HNE.01 ML:3.3 0.000316 0.4 AML other m 2019-07-21T16:50:00.27
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