Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 07-05-2017 and time 18:32:41 (Italy) in region 9 km SW Tivoli (RM)

A magnitude ML 0.7 earthquake occured in region: 9 km SW Tivoli (RM), on

  • 07-05-2017 16:32:41 (UTC)
  • 07-05-2017 18:32:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9130, 12.7150 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Tivoli RM 9 56533 56533
Colonna RM 9 4287 60820
Guidonia Montecelio RM 10 88673 149493
Gallicano nel Lazio RM 10 6334 155827
Monte Porzio Catone RM 11 8693 164520
Monte Compatri RM 12 11978 176498
Frascati RM 12 22087 198585
Fonte Nuova RM 12 32562 231147
San Cesareo RM 12 15153 246300
Zagarolo RM 13 17843 264143
San Gregorio da Sassola RM 13 1619 265762
Sant'Angelo Romano RM 14 5018 270780
Rocca Priora RM 14 11962 282742
Casape RM 14 744 283486
Grottaferrata RM 14 20327 303813
Marcellina RM 15 7280 311093
Castel Madama RM 15 7399 318492
Mentana RM 15 22921 341413
Poli RM 15 2418 343831
San Polo dei Cavalieri RM 15 2992 346823
Ciampino RM 15 38412 385235
Marino RM 17 43026 428261
Castel San Pietro Romano RM 17 902 429163
Palestrina RM 17 21672 450835
Rocca di Papa RM 17 17034 467869
Monterotondo RM 18 40830 508699
Palombara Sabina RM 18 13269 521968
Vicovaro RM 19 4019 525987
Roma RM 19 2864731 3390718
Castel Gandolfo RM 19 8997 3399715
Ciciliano RM 20 1336 3401051

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SW of Tivoli (56533 inhabitants)
10 Km S of Guidonia Montecelio (88673 inhabitants)
19 Km E of Roma (2864731 inhabitants)
26 Km N of Velletri (53303 inhabitants)
32 Km NE of Pomezia (62966 inhabitants)
36 Km N of Aprilia (73446 inhabitants)
43 Km E of Fiumicino (78395 inhabitants)
52 Km NW of Latina (125985 inhabitants)
52 Km N of Anzio (54211 inhabitants)
72 Km S of Terni (111501 inhabitants)
75 Km SW of L'Aquila (69753 inhabitants)
75 Km SE of Viterbo (67173 inhabitants)
79 Km E of Civitavecchia (52991 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		Md 1.0
ML 0.7 		2017-05-07
16:32:41		 41.9133 12.7152 10 2018-07-06
10:38:15		 Bollettino Sismico Italiano INGV 45201231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-05-07 16:32:41 ± 0.18
Latitude 41.9133 ± 0.0027
Longitude 12.7152 ± 0.0048
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 45201231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 404
Semi-minor axis of confidence ellipse (meter) 189
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 102
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 185
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20145
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 45201231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-05-12 12:40:29

Md:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 2
Type of magnitude Md
Reference to an origin 45201231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-05-12 12:40:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.RISI.HHZ. 2017-05-07T16:34:30.69 3.0 undecidable manual Sn -7.85 0
IV.ZONE.HHZ. 2017-05-07T16:34:19.25 3.0 undecidable manual Sn 1.05 0
MN.DIVS.BHZ. 2017-05-07T16:34:15.76 3.0 undecidable manual Pg 21.9 0
IV.EUCT.HNZ. 2017-05-07T16:33:43.65 3.0 undecidable manual Pg 15.94 0
MN.CLTB.HHZ. 2017-05-07T16:33:41.67 3.0 positive manual Pg 9.36 0
NI.VINO.HHZ. 2017-05-07T16:33:37.72 3.0 negative manual Pg 5.62 0
IV.PAOL.HHZ. 2017-05-07T16:33:30.86 3.0 undecidable manual Sg 6.15 0
IV.SPS2.HHZ. 2017-05-07T16:33:25.55 3.0 undecidable manual Pn -1.46 0
IV.NOCI.HHZ. 2017-05-07T16:33:23.34 3.0 undecidable manual Pn 0.3 0
IV.RAVA.EHZ. 2017-05-07T16:33:12.56 3.0 negative manual Pn -1.05 0
BA.PZUN.HHZ. 2017-05-07T16:33:12.44 3.0 negative manual Pn 0.24 0
IV.T1216.EHZ. 2017-05-07T16:33:09.50 3.0 undecidable manual Sn 0.53 0
IV.ARVD.HHZ. 2017-05-07T16:33:00.30 3.0 undecidable manual Pg 3.7 0
IV.INTR.HNZ. 2017-05-07T16:32:51.83 3.0 undecidable manual P 0.66 0
IV.CERT.HHZ. 2017-05-07T16:32:50.25 0.3 undecidable manual S 80 22.3554 114 -0.1 73
IV.TERO.HHZ. 2017-05-07T16:32:49.72 3.0 negative manual Pn -1.52 0
IV.RCAV.EHZ. 2017-05-07T16:32:49.87 0.3 undecidable manual S 111 20.3685 116 0.14 73
IV.T1299.EHZ. 2017-05-07T16:32:48.91 3.0 negative manual Pn -0.69 0
IV.T1247.HHZ. 2017-05-07T16:32:47.46 3.0 negative manual Pn -1.05 0
IV.RM33.EHZ. 2017-05-07T16:32:47.99 3.0 positive manual P -0.49 0
IV.MTCE.HHZ. 2017-05-07T16:32:47.45 0.3 undecidable manual S 10 12.3765 129 0.08 75
IV.RMP.HHZ. 2017-05-07T16:32:46.98 0.3 undecidable manual S 185 11.3775 132 -0.13 74
IV.RCAV.EHZ. 2017-05-07T16:32:46.32 0.3 undecidable manual P 111 20.3685 116 -0.07 74
IV.CERT.HHZ. 2017-05-07T16:32:46.75 0.1 undecidable manual P 80 22.3554 114 0 99
IV.RMP.HHZ. 2017-05-07T16:32:45.01 0.1 undecidable manual P 185 11.3775 132 0.13 99
IV.MTCE.HHZ. 2017-05-07T16:32:44.97 0.1 undecidable manual P 10 12.3765 129 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERT.HHE. ML:0.6 0.000023247815499999997 0.2048 AML other m 2017-05-07T16:32:52.15
IV.CERT.HHN. ML:0.5 0.000021366010499999997 0.2432 AML other m 2017-05-07T16:32:51.94
IV.MTCE.HHN. ML:0.6 0.000046157129999999994 0.2304 AML other m 2017-05-07T16:32:48.42
IV.MTCE.HHE. ML:0.7 0.00005674520500000001 0 AML other m 2017-05-07T16:32:47.78
IV.RMP.HHN. ML:0.9 0.00009221093 0.2432 AML other m 2017-05-07T16:32:47.64
IV.RMP.HHE. ML:0.9 0.00009863995500000001 0.0768 AML other m 2017-05-07T16:32:47.52
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download