Earthquake with magnitude of Md 3.9 on date 20-10-1989 and time 00:33:26 (Italy) in region 2 km S Rocca Priora (RM)

A magnitude Md 3.9 earthquake occured in region: 2 km S Rocca Priora (RM), on

  • 19-10-1989 23:33:26 (UTC)
  • 20-10-1989 00:33:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.775, 12.76 at 5 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Rocca Priora RM 2 11962 11962
Monte Compatri RM 4 11978 23940
Rocca di Papa RM 4 17034 40974
Monte Porzio Catone RM 6 8693 49667
San Cesareo RM 6 15153 64820
Colonna RM 7 4287 69107
Nemi RM 7 1943 71050
Frascati RM 7 22087 93137
Grottaferrata RM 8 20327 113464
Lariano RM 8 13432 126896
Marino RM 8 43026 169922
Genzano di Roma RM 9 23970 193892
Zagarolo RM 9 17843 211735
Castel Gandolfo RM 10 8997 220732
Ariccia RM 10 19407 240139
Albano Laziale RM 10 41715 281854
Velletri RM 10 53303 335157
Labico RM 11 6379 341536
Lanuvio RM 12 13632 355168
Gallicano nel Lazio RM 12 6334 361502
Palestrina RM 13 21672 383174
Valmontone RM 13 15959 399133
Ciampino RM 13 38412 437545
Artena RM 14 14276 451821
Castel San Pietro Romano RM 14 902 452723
Cave RM 15 11287 464010
Poli RM 17 2418 466428
Rocca Massima LT 17 1136 467564
Rocca di Cave RM 17 377 467941
Casape RM 18 744 468685
San Gregorio da Sassola RM 19 1619 470304
Genazzano RM 19 6036 476340
Capranica Prenestina RM 19 351 476691
Cori LT 19 11065 487756

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km N of Velletri (53303 inhabitants)
21 Km S of Tivoli (56533 inhabitants)
22 Km NE of Aprilia (73446 inhabitants)
24 Km E of Pomezia (62966 inhabitants)
25 Km S of Guidonia Montecelio (88673 inhabitants)
26 Km SE of Roma (2864731 inhabitants)
36 Km NW of Latina (125985 inhabitants)
38 Km N of Anzio (54211 inhabitants)
43 Km E of Fiumicino (78395 inhabitants)
83 Km SW of L'Aquila (69753 inhabitants)
87 Km E of Civitavecchia (52991 inhabitants)
88 Km S of Terni (111501 inhabitants)
90 Km SE of Viterbo (67173 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 3.9
M 3.8
1989-10-19
23:33:26
41.775 12.76 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 102459
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-10-19 23:33:26 ± 0.198
Latitude 41.7750 ± 0.0150
Longitude 12.7600 ± 0.0168
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 102459

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2173.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00024
Epicentral distance of station farthest from the epicenter (degree) 0.07471
Number of stations at which the event was observed 51
Number of stations from which data was used for origin computation 51
Magnitudes information

Md:3.9

Field Value
Value 3.9
Uncertainty
Num. used stations 9
Type of magnitude Md
Reference to an origin 102459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:35:29

M:3.8

Field Value
Value 3.8
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 102459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:35:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PRU.Z. 1989-10-19T23:35:27.50 10.0 undecidable manual PN 7 0.0747 0.02 0.7
--.VKA.Z. 1989-10-19T23:35:10.50 10.0 undecidable manual PN 19 0.0626 1.49 0.3
--.BHG.Z. 1989-10-19T23:34:56.70 10.0 undecidable manual PN 0 0.0534 1.6 0.3
--.BNI.Z. 1989-10-19T23:34:48.50 10.0 undecidable manual PN 308 0.0495 -0.46 0.9
--.KBA.Z. 1989-10-19T23:34:47.00 10.0 undecidable manual PN 4 0.0478 0.5 0.9
--.DOI.Z. 1989-10-19T23:34:40.20 10.0 undecidable manual PN 306 0.0437 0 1
--.FVI.Z. 1989-10-19T23:34:39.69 10.0 undecidable manual PN 0 0.0433 0.06 1
--.MDI.Z. 1989-10-19T23:34:36.50 10.0 undecidable manual PN 332 0.041 0.32 1
--.CTI.Z. 1989-10-19T23:34:33.17 10.0 undecidable manual PN 349 0.0391 0.02 1.1
--.SAL.Z. 1989-10-19T23:34:31.50 10.0 undecidable manual PN 337 0.0374 0.93 0.8
--.CKI.Z. 1989-10-19T23:34:30.80 10.0 undecidable manual PN 310 0.0378 -0.43 1
--.GRI.Z. 1989-10-19T23:34:30.44 10.0 undecidable manual PN 135 0.0365 1.17 0.5
--.TRI.Z. 1989-10-19T23:34:27.78 10.0 undecidable manual PN 10 0.0359 -0.62 1
--.BOB.Z. 1989-10-19T23:34:26.60 10.0 undecidable manual PN 322 0.0346 -0.17 1.2
--.PE1.Z. 1989-10-19T23:34:24.00 10.0 undecidable manual PN 103 0.0326 0.61 1
--.CZI.Z. 1989-10-19T23:34:21.68 10.0 undecidable manual PN 133 0.0325 -1.52 0.4
--.TDS.Z. 1989-10-19T23:34:21.56 10.0 undecidable manual PN 126 0.0309 0.87 0.8
--.CGL.Z. 1989-10-19T23:34:20.46 10.0 undecidable manual PN 228 0.0321 -2.02 0.2
--.CSI.Z. 1989-10-19T23:34:20.10 10.0 undecidable manual PN 125 0.03 0.84 0.9
--.BRT.Z. 1989-10-19T23:34:20.70 10.0 undecidable manual PN 103 0.0307 0.32 1.2
--.HVA.Z. 1989-10-19T23:34:17.50 10.0 undecidable manual PN 61 0.0275 1.99 0.2
--.BAI.Z. 1989-10-19T23:34:17.50 10.0 undecidable manual PN 100 0.0284 0.64 1.1
--.MME.Z. 1989-10-19T23:34:13.92 10.0 undecidable manual PN 328 0.0256 1.31 0.6
--.CDM.Z. 1989-10-19T23:34:12.00 10.0 undecidable manual PN 103 0.0244 1.11 0.8
--.DUI.Z. 1989-10-19T23:34:10.00 10.0 undecidable manual SN 94 0.0114 1.21 0.3
--.ASS.Z. 1989-10-19T23:34:10.00 10.0 undecidable manual SN 356 0.0116 0.81 0.5
--.BDI.Z. 1989-10-19T23:34:10.00 10.0 undecidable manual PN 326 0.025 -1.68 0.3
--.MS1.Z. 1989-10-19T23:34:08.00 10.0 undecidable manual PN 90 0.0213 1.9 0.2
--.PII.Z. 1989-10-19T23:34:07.81 10.0 undecidable manual PN 320 0.0228 -0.63 1.2
--.FG3.Z. 1989-10-19T23:34:06.60 10.0 undecidable manual PN 90 0.0214 0.42 1.4
--.FIR.Z. 1989-10-19T23:34:06.50 10.0 undecidable manual PN 331 0.0205 1.66 0.4
--.PGD.Z. 1989-10-19T23:34:04.48 10.0 undecidable manual PN 340 0.0201 0.31 1.5
--.RFI.Z. 1989-10-19T23:34:03.89 10.0 undecidable manual SG 116 0.0092 1.22 0.3
--.SFI.Z. 1989-10-19T23:34:03.50 10.0 undecidable manual PN 342 0.0201 -0.63 1.2
--.TR9.Z. 1989-10-19T23:34:01.00 10.0 undecidable manual PN 110 0.0179 0.17 1.5
--.AM8.Z. 1989-10-19T23:34:00.55 10.0 undecidable manual PN 18 0.0168 1.26 0.7
--.CRE.Z. 1989-10-19T23:34:00.23 10.0 undecidable manual PN 342 0.0174 0.13 1.5
--.FG2.Z. 1989-10-19T23:33:58.74 10.0 undecidable manual PN 88 0.016 0.66 1.2
--.ARV.Z. 1989-10-19T23:33:57.75 10.0 negative manual PN 4 0.0155 0.51 2.7
--.OVO.Z. 1989-10-19T23:33:54.60 10.0 undecidable manual PN 127 0.0139 -0.23 1.5
--.SOR.Z. 1989-10-19T23:33:54.80 10.0 undecidable manual PN 134 0.0151 -1.8 0.3
--.SDI.Z. 1989-10-19T23:33:53.50 10.0 undecidable manual SG 94 0.007 -1.74 0.1
--.AQU.Z. 1989-10-19T23:33:52.42 10.0 undecidable manual SG 39 0.0067 -1.2 0.3
--.CM8.Z. 1989-10-19T23:33:52.64 10.0 undecidable manual PN 11 0.013 -0.73 1.1
--.DUI.Z. 1989-10-19T23:33:51.40 10.0 undecidable manual PN 94 0.0114 0.06 1.5
--.ASS.Z. 1989-10-19T23:33:50.36 10.0 negative manual PN 356 0.0116 -0.85 2.1
--.SGG.Z. 1989-10-19T23:33:50.50 10.0 undecidable manual PN 107 0.0114 -0.46 1.4
--.RFI.Z. 1989-10-19T23:33:47.10 10.0 undecidable manual PG 116 0.0092 -0.44 1.4
--.ALP.Z. 1989-10-19T23:33:47.39 10.0 undecidable manual PN! 30 0.0104 -2.17 0
--.AZI.Z. 1989-10-19T23:33:46.50 10.0 undecidable manual SG 66 0.0049 -0.57 0.5
--.SDI.Z. 1989-10-19T23:33:41.60 10.0 positive manual PG 94 0.007 -1.84 0.6
--.AQU.Z. 1989-10-19T23:33:41.52 10.0 positive manual PG 39 0.0067 -0.7 2.4
--.MNS.Z. 1989-10-19T23:33:38.24 10.0 positive manual PG 354 0.0055 -1.43 1
--.AZI.Z. 1989-10-19T23:33:37.47 10.0 positive manual PG 66 0.0049 -0.97 1.9
--.CP9.Z. 1989-10-19T23:33:32.92 10.0 undecidable manual SG 58 0.0015 -0.4 0.6
--.CP9.Z. 1989-10-19T23:33:31.13 10.0 positive manual PG 58 0.0015 0.63 2.5
--.RMP.Z. 1989-10-19T23:33:30.16 10.0 undecidable manual SG 310 0.0005 0.78 0.5
--.RDP.Z. 1989-10-19T23:33:29.37 10.0 undecidable manual SG 242 0.0002 0.55 0.5
--.RMP.Z. 1989-10-19T23:33:28.60 10.0 positive manual PG 310 0.0005 0.38 2.9
--.RDP.Z. 1989-10-19T23:33:27.68 10.0 positive manual PG 242 0.0002 -0.23 3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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