Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 18-07-1988 and time 04:09:10 (Italy) in region 3 km E San Cesareo (RM)

A magnitude Md 2.0 earthquake occured in region: 3 km E San Cesareo (RM), on

  • 18-07-1988 02:09:10 (UTC)
  • 18-07-1988 04:09:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8080, 12.8380 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
San Cesareo RM 3 15153 15153
Zagarolo RM 4 17843 32996
Labico RM 5 6379 39375
Palestrina RM 6 21672 61047
Rocca Priora RM 6 11962 73009
Castel San Pietro Romano RM 7 902 73911
Gallicano nel Lazio RM 7 6334 80245
Valmontone RM 8 15959 96204
Colonna RM 8 4287 100491
Cave RM 8 11287 111778
Monte Compatri RM 8 11978 123756
Lariano RM 9 13432 137188
Artena RM 10 14276 151464
Monte Porzio Catone RM 10 8693 160157
Rocca di Cave RM 10 377 160534
Poli RM 10 2418 162952
Capranica Prenestina RM 11 351 163303
Genazzano RM 12 6036 169339
Rocca di Papa RM 12 17034 186373
Casape RM 12 744 187117
San Gregorio da Sassola RM 13 1619 188736
Frascati RM 13 22087 210823
Nemi RM 14 1943 212766
Grottaferrata RM 14 20327 233093
Velletri RM 14 53303 286396
San Vito Romano RM 15 3273 289669
Pisoniano RM 15 770 290439
Marino RM 15 43026 333465
Rocca Massima LT 16 1136 334601
Colleferro RM 16 21595 356196
Genzano di Roma RM 16 23970 380166
Castel Gandolfo RM 17 8997 389163
Ariccia RM 17 19407 408570
Albano Laziale RM 17 41715 450285
Olevano Romano RM 17 6687 456972
Tivoli RM 18 56533 513505
Bellegra RM 18 2887 516392
Lanuvio RM 18 13632 530024
Paliano FR 18 8281 538305
Castel Madama RM 19 7399 545704
Gerano RM 19 1263 546967
Ciciliano RM 19 1336 548303
Rocca Santo Stefano RM 19 975 549278
Cori LT 19 11065 560343
Cerreto Laziale RM 19 1118 561461
Ciampino RM 20 38412 599873

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NE of Velletri (53303 inhabitants)
18 Km S of Tivoli (56533 inhabitants)
23 Km SE of Guidonia Montecelio (88673 inhabitants)
28 Km NE of Aprilia (73446 inhabitants)
31 Km E of Roma (2864731 inhabitants)
32 Km E of Pomezia (62966 inhabitants)
38 Km N of Latina (125985 inhabitants)
44 Km NE of Anzio (54211 inhabitants)
50 Km E of Fiumicino (78395 inhabitants)
76 Km SW of L'Aquila (69753 inhabitants)
85 Km S of Terni (111501 inhabitants)
91 Km SE of Viterbo (67173 inhabitants)
92 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 2.0 1988-07-18
02:09:10		 41.808 12.838 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 73689
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-07-18 02:09:10 ± 0.239
Latitude 41.8080 ± 0.0112
Longitude 12.8380 ± 0.0189
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 73689

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) 2001.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 252
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00526
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 73689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:09:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1988-07-18T02:09:22.31 10.0 undecidable manual PG 348 0.5883 -0.1 0.9
--.RDP.Z. 1988-07-18T02:09:15.30 10.0 undecidable manual SG 241 0.0999 -0.4 0.1
--.RMP.Z. 1988-07-18T02:09:15.67 10.0 undecidable manual SG 271 0.0999 0.04 0.8
--.RDP.Z. 1988-07-18T02:09:13.52 10.0 undecidable manual PG 241 0.0999 0.06 2
--.RMP.Z. 1988-07-18T02:09:13.62 10.0 undecidable manual PG 271 0.0999 0.19 1.2
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