Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 16-08-1988 and time 05:47:06 (Italy) in region 1 km E Lanuvio (RM)

A magnitude Md 2.5 earthquake occured in region: 1 km E Lanuvio (RM), on

  • 16-08-1988 03:47:06 (UTC)
  • 16-08-1988 05:47:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6850, 12.7210 at 9 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
Lanuvio RM 2 13632 13632
Genzano di Roma RM 4 23970 37602
Nemi RM 4 1943 39545
Velletri RM 5 53303 92848
Ariccia RM 6 19407 112255
Albano Laziale RM 7 41715 153970
Rocca di Papa RM 9 17034 171004
Castel Gandolfo RM 9 8997 180001
Lariano RM 11 13432 193433
Marino RM 11 43026 236459
Aprilia LT 12 73446 309905
Grottaferrata RM 12 20327 330232
Rocca Priora RM 13 11962 342194
Cisterna di Latina LT 14 36868 379062
Frascati RM 14 22087 401149
Monte Compatri RM 14 11978 413127
Monte Porzio Catone RM 15 8693 421820
Ciampino RM 17 38412 460232
Rocca Massima LT 17 1136 461368
Ardea RM 17 49183 510551
San Cesareo RM 17 15153 525704
Cori LT 17 11065 536769
Colonna RM 17 4287 541056
Artena RM 17 14276 555332
Labico RM 18 6379 561711
Pomezia RM 18 62966 624677
Valmontone RM 19 15959 640636
Zagarolo RM 20 17843 658479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of Velletri (53303 inhabitants)
12 Km NE of Aprilia (73446 inhabitants)
18 Km E of Pomezia (62966 inhabitants)
27 Km N of Anzio (54211 inhabitants)
29 Km NW of Latina (125985 inhabitants)
30 Km SE of Roma (2864731 inhabitants)
32 Km S of Tivoli (56533 inhabitants)
35 Km S of Guidonia Montecelio (88673 inhabitants)
41 Km E of Fiumicino (78395 inhabitants)
89 Km SE of Civitavecchia (52991 inhabitants)
93 Km SW of L'Aquila (69753 inhabitants)
96 Km SE of Viterbo (67173 inhabitants)
98 Km S of Terni (111501 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 2.5
ML-VAX 1.5 		1988-08-16
03:47:06		 41.685 12.721 9 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 75789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-08-16 03:47:06 ± 0.417
Latitude 41.6850 ± 0.0194
Longitude 12.7210 ± 0.0280
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 75789

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) 3175.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 241
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.00915
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 75789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:11:27

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 75789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SDI.Z. 1988-08-16T03:47:35.79 10.0 undecidable manual SG 87 0.8103 0.65 0.3
--.MNS.Z. 1988-08-16T03:47:32.60 10.0 undecidable manual SG 357 0.6882 0.57 0.4
--.AZI.Z. 1988-08-16T03:47:28.42 10.0 undecidable manual SG 60 0.5994 -0.24 0.7
--.RFI.Z. 1988-08-16T03:47:27.80 10.0 undecidable manual PG 111 1.0101 0.71 0.5
--.SDI.Z. 1988-08-16T03:47:22.48 10.0 undecidable manual PG 87 0.8103 -0.75 0.5
--.MNS.Z. 1988-08-16T03:47:20.95 10.0 undecidable manual PG 357 0.6882 -0.18 1.7
--.AZI.Z. 1988-08-16T03:47:18.79 10.0 undecidable manual PG 60 0.5994 -0.71 0.7
--.CP9.Z. 1988-08-16T03:47:17.56 10.0 undecidable manual SG 44 0.2442 0.61 0.4
--.CP9.Z. 1988-08-16T03:47:12.85 10.0 undecidable manual PG 44 0.2442 0.12 2.2
--.RMP.Z. 1988-08-16T03:47:12.91 10.0 undecidable manual SG 353 0.1221 0.1 0.9
--.RDP.Z. 1988-08-16T03:47:11.00 10.0 undecidable manual SG 357 0.0666 -0.24 0.8
--.RMP.Z. 1988-08-16T03:47:10.15 10.0 undecidable manual PG 353 0.1221 -0.19 2.1
--.RDP.Z. 1988-08-16T03:47:09.82 10.0 undecidable manual PG 357 0.0666 0.39 1.7
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