Earthquake with magnitude of Md 2.0 on date 14-05-1987 and time 02:52:39 (UTC) in region 1 km SE Lanuvio (RM)

A magnitude Md 2.0 earthquake occured in region: 1 km SE Lanuvio (RM), on

  • 14-05-1987 02:52:39 (UTC)
  • 14-05-1987 04:52:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6750, 12.7070 at 15 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
Lanuvio RM 1 13632 13632
Genzano di Roma RM 4 23970 37602
Nemi RM 5 1943 39545
Ariccia RM 6 19407 58952
Velletri RM 6 53303 112255
Albano Laziale RM 7 41715 153970
Castel Gandolfo RM 9 8997 162967
Rocca di Papa RM 10 17034 180001
Aprilia LT 10 73446 253447
Marino RM 11 43026 296473
Lariano RM 12 13432 309905
Grottaferrata RM 13 20327 330232
Cisterna di Latina LT 14 36868 367100
Rocca Priora RM 14 11962 379062
Frascati RM 15 22087 401149
Monte Compatri RM 15 11978 413127
Ardea RM 15 49183 462310
Monte Porzio Catone RM 16 8693 471003
Ciampino RM 17 38412 509415
Pomezia RM 17 62966 572381
Cori LT 18 11065 583446
Rocca Massima LT 18 1136 584582
San Cesareo RM 18 15153 599735
Colonna RM 18 4287 604022
Artena RM 19 14276 618298
Labico RM 19 6379 624677

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km W of Velletri (53303 inhabitants)
10 Km NE of Aprilia (73446 inhabitants)
17 Km E of Pomezia (62966 inhabitants)
26 Km N of Anzio (54211 inhabitants)
28 Km NW of Latina (125985 inhabitants)
31 Km SE of Roma (2864731 inhabitants)
33 Km S of Tivoli (56533 inhabitants)
36 Km S of Guidonia Montecelio (88673 inhabitants)
40 Km E of Fiumicino (78395 inhabitants)
89 Km SE of Civitavecchia (52991 inhabitants)
95 Km SW of L'Aquila (69753 inhabitants)
96 Km SE of Viterbo (67173 inhabitants)
99 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 2.0 1987-05-14
02:52:39
41.675 12.707 15 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 46999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-14 02:52:39 ± 0.543
Latitude 41.6750 ± 0.0248
Longitude 12.7070 ± 0.0228
Depth (km) 15 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 46999

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) 3341.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 314
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00631
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 46999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:46:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1987-05-14T02:53:04.00 10.0 undecidable manual SG 358 0.6993 -0.14 0.4
--.MNS.Z. 1987-05-14T02:52:53.50 10.0 undecidable manual PG 358 0.6993 -0.19 1
--.CP9.Z. 1987-05-14T02:52:50.00 10.0 undecidable manual SG 44 0.2553 0.05 0.8
--.RMP.Z. 1987-05-14T02:52:47.00 10.0 undecidable manual SG 358 0.1332 0.63 0.2
--.CP9.Z. 1987-05-14T02:52:45.50 10.0 undecidable manual PG 44 0.2553 0 2
--.RDP.Z. 1987-05-14T02:52:44.50 10.0 undecidable manual SG 4 0.0777 -0.7 0.1
--.RDP.Z. 1987-05-14T02:52:43.00 10.0 undecidable manual PG 4 0.0777 0.25 1.1
--.RMP.Z. 1987-05-14T02:52:43.50 10.0 undecidable manual PG 358 0.1332 0.07 2
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