INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.8 on date 10-07-2018 and time 10:01:15 (Italy) in region 5 km NW Castel Sant'Angelo (RI)

A magnitude ML 1.8 earthquake occured in region: 5 km NW Castel Sant'Angelo (RI), on

  • 10-07-2018 08:01:15 (UTC)
  • 10-07-2018 10:01:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.43, 13 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
Castel Sant'Angelo RI 5 1308 1308
Micigliano RI 5 127 1435
Borgo Velino RI 6 972 2407
Cittaducale RI 6 6828 9235
Antrodoco RI 7 2588 11823
Cantalice RI 9 2755 14578
Rieti RI 11 47698 62276
Concerviano RI 12 291 62567
Poggio Bustone RI 12 2055 64622
Posta RI 13 694 65316
Borbona RI 14 617 65933
Leonessa RI 15 2435 68368
Belmonte in Sabina RI 15 636 69004
Rivodutri RI 15 1253 70257
Petrella Salto RI 16 1197 71454
Morro Reatino RI 17 373 71827
Longone Sabino RI 18 597 72424
Rocca Sinibalda RI 18 815 73239
Greccio RI 19 1558 74797
Cagnano Amiterno AQ 19 1369 76166
Contigliano RI 19 3783 79949
Labro RI 19 374 80323
Colli sul Velino RI 19 533 80856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Terni (111501 inhabitants)
34 Km W of L'Aquila (69753 inhabitants)
53 Km NE of Guidonia Montecelio (88673 inhabitants)
54 Km NE of Tivoli (56533 inhabitants)
63 Km SE of Foligno (57155 inhabitants)
63 Km W of Teramo (54892 inhabitants)
73 Km E of Viterbo (67173 inhabitants)
73 Km NE of Roma (2864731 inhabitants)
85 Km N of Velletri (53303 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
94 Km NE of Pomezia (62966 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
96 Km NE of Fiumicino (78395 inhabitants)
97 Km W of Chieti (51815 inhabitants)
97 Km NE of Aprilia (73446 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 1.8 2018-07-10
08:01:15
42.43 13 9 2018-07-10
08:11:32
Sala Sismica INGV-Roma 58661661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-10 08:01:15 ± 0.08
Latitude 42.43 ± 0.00
Longitude 13.00 ± 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 58661661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 460
Semi-minor axis of confidence ellipse (meter) 454
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 97
Circular confidence region, given by single value of horizontal uncertainty (meter) 460
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 24
Number of defining phases 17
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) 0.48743
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 58661661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-10 08:11:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SNAL.HHZ. 2018-07-10T08:02:20.88 3.0 undecidable manual Sn 0.22 0
IV.OSSC.HHZ. 2018-07-10T08:02:07.37 3.0 undecidable manual Sn -0.19 0
IV.MOMA.HHZ. 2018-07-10T08:01:32.82 0.6 undecidable manual S 320 0.4874 50 0.16 46
IV.NRCA.HHZ. 2018-07-10T08:01:30.27 0.3 undecidable manual S 12 0.4119 50 -0.13 70
IV.TOLF.HHZ. 2018-07-10T08:01:30.67 3.0 undecidable manual P -1.39 0
IV.CESX.HHZ. 2018-07-10T08:01:28.23 0.6 undecidable manual S 301 0.3507 50 -0.38 45
OB.GAVE.EHZ. 2018-07-10T08:01:26.03 0.3 undecidable manual S 344 0.2716 50 -0.24 71
IV.MMO1.EHZ. 2018-07-10T08:01:25.74 3.0 positive manual P -0.52 0
IV.TERO.HHZ. 2018-07-10T08:01:25.09 3.0 negative manual P -0.35 0
IV.MOMA.HHZ. 2018-07-10T08:01:25.80 0.3 undecidable manual P 320 0.4874 50 0.46 64
IV.ARRO.EHZ. 2018-07-10T08:01:24.29 0.6 undecidable manual S 311 0.2266 110 -0.33 47
IV.MTRA.EHZ. 2018-07-10T08:01:24.87 3.0 negative manual P 0.29 0
IV.SRES.HHE. 2018-07-10T08:01:24.46 0.6 undecidable manual P 242 0.4092 50 0.46 44
IV.RM33.EHZ. 2018-07-10T08:01:23.11 0.3 undecidable manual S 64 0.1781 115 0.2 72
IV.CESX.HHZ. 2018-07-10T08:01:23.25 0.3 undecidable manual P 301 0.3507 50 0.25 69
IV.NRCA.HHZ. 2018-07-10T08:01:23.97 0.1 undecidable manual P 12 0.4119 50 -0.07 95
IV.FIAM.HHZ. 2018-07-10T08:01:22.88 0.3 undecidable manual S 151 0.1853 114 -0.28 71
IV.LNSS.HHZ. 2018-07-10T08:01:22.80 0.3 undecidable manual S 10 0.1745 115 0.01 75
IV.CAMP.HHZ. 2018-07-10T08:01:22.43 3.0 positive manual P 0.06 0
OB.GAVE.EHZ. 2018-07-10T08:01:21.48 0.3 undecidable manual P 344 0.2716 50 -0.17 72
IV.ARRO.EHZ. 2018-07-10T08:01:20.79 0.3 undecidable manual P 311 0.2266 110 0.09 73
IV.RM33.EHZ. 2018-07-10T08:01:19.74 0.1 undecidable manual P 64 0.1781 115 0.03 100
IV.FIAM.HHZ. 2018-07-10T08:01:19.78 0.3 undecidable manual P 151 0.1853 114 -0.08 74
IV.LNSS.HHZ. 2018-07-10T08:01:19.70 0.3 undecidable manual P 10 0.1745 115 0.05 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:1.6 0.00010095 1.4 AML other m 2018-07-10T08:01:36.91
IV.FIAM.HHE. ML:1.9 0.000613 0.5 AML other m 2018-07-10T08:01:24.58
IV.LNSS.HHN. ML:2.1 0.001013 0.4 AML other m 2018-07-10T08:01:24.37
IV.LNSS.HHE. ML:2.2 0.00124 1.66 AML other m 2018-07-10T08:01:24.10
IV.ARRO.EHE. ML:1.5 0.000201 0.64 AML other m 2018-07-10T08:01:25.31
IV.ARRO.EHN. ML:1.7 0.0002785 0.3 AML other m 2018-07-10T08:01:26.17
OB.GAVE.EHE. ML:2.1 0.0005915 0.28 AML other m 2018-07-10T08:01:26.29
OB.GAVE.EHN. ML:2.1 0.0005835 0.74 AML other m 2018-07-10T08:01:26.47
IV.CAMP.HHN. ML:1.5 0.0001345 0.82 AML other m 2018-07-10T08:01:30.22
IV.CAMP.HHE. ML:1.4 8.91E-5 1.16 AML other m 2018-07-10T08:01:30.83
IV.CESX.HHN. ML:1.6 0.000135 0.34 AML other m 2018-07-10T08:01:30.91
IV.CESX.HHE. ML:1.5 0.000115 1.56 AML other m 2018-07-10T08:01:30.91
IV.MTRA.EHN. ML:1.8 0.000172 1.56 AML other m 2018-07-10T08:01:31.94
IV.MTRA.EHE. ML:1.9 0.0002025 1.56 AML other m 2018-07-10T08:01:32.08
IV.NRCA.HHE. ML:1.9 0.000238 0.66 AML other m 2018-07-10T08:01:32.06
IV.NRCA.HHN. ML:1.8 0.0001895 0.42 AML other m 2018-07-10T08:01:32.44
IV.TERO.HHE. ML:1.3 5.08E-5 0.48 AML other m 2018-07-10T08:01:34.03
IV.TERO.HHN. ML:1.4 5.855E-5 0.9 AML other m 2018-07-10T08:01:34.38
IV.MOMA.HHN. ML:1.7 0.00012405 0.2 AML other m 2018-07-10T08:01:36.63
IV.RM33.HNN. ML:2 0.00074264815 0.9408 AML other m 2018-07-10T08:01:23.67
IV.RM33.EHN. ML:2 0.0007110858 0.416 AML other m 2018-07-10T08:01:27.23
IV.RM33.HNE. ML:2 0.00078220265 0.3392 AML other m 2018-07-10T08:01:23.16
IV.RM33.EHE. ML:2 0.0008335 0.42 AML other m 2018-07-10T08:01:23.75
IV.FIAM.HHN. ML:1.9 0.0005488374 0.3584 AML other m 2018-07-10T08:01:26.37
OB.GAVE.HNE. ML:2.1 0.00058211695 0.3648 AML other m 2018-07-10T08:01:26.28
IV.NRCA.HNE. ML:1.8 0.00019367615 0.1408 AML other m 2018-07-10T08:01:32.40
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