Earthquake with magnitude of Md 2.0 on date 17-07-1988 and time 23:12:15 (Italy) in region 4 km NE Pomezia (RM)

A magnitude Md 2.0 earthquake occured in region: 4 km NE Pomezia (RM), on

  • 17-07-1988 21:12:15 (UTC)
  • 17-07-1988 23:12:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.71, 12.52 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
Pomezia RM 5 62966 62966
Ardea RM 11 49183 112149
Castel Gandolfo RM 12 8997 121146
Albano Laziale RM 12 41715 162861
Ciampino RM 13 38412 201273
Ariccia RM 13 19407 220680
Marino RM 13 43026 263706
Genzano di Roma RM 14 23970 287676
Grottaferrata RM 15 20327 308003
Lanuvio RM 16 13632 321635
Nemi RM 16 1943 323578
Aprilia LT 17 73446 397024
Rocca di Papa RM 17 17034 414058
Frascati RM 17 22087 436145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NE of Pomezia (62966 inhabitants)
17 Km NW of Aprilia (73446 inhabitants)
21 Km S of Roma (2864731 inhabitants)
22 Km W of Velletri (53303 inhabitants)
25 Km E of Fiumicino (78395 inhabitants)
30 Km NW of Anzio (54211 inhabitants)
37 Km SW of Tivoli (56533 inhabitants)
37 Km SW of Guidonia Montecelio (88673 inhabitants)
42 Km NW of Latina (125985 inhabitants)
74 Km SE of Civitavecchia (52991 inhabitants)
86 Km SE of Viterbo (67173 inhabitants)
95 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
Rev 1000 Md 2.0
ML-VAX 2.0
1988-07-17
21:12:15
41.71 12.52 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 73649
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-07-17 21:12:15 ± 1.226
Latitude 41.71 ± 0.07
Longitude 12.52 ± 0.05
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 73649

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) 8275.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 298
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00615
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 73649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:09:35

ML:2

Field Value
Value 2
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 73649
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 Takeoff_angle Residual Weight
--.MNS.Z. 1988-07-17T21:12:41.00 10.0 undecidable manual SG 10 0.0062 0.98 0
--.MNS.Z. 1988-07-17T21:12:29.00 10.0 undecidable manual PG 10 0.0062 -0.5 0.6
--.RDP.Z. 1988-07-17T21:12:21.45 10.0 undecidable manual SG 71 0.0014 0.13 0.6
--.RMP.Z. 1988-07-17T21:12:21.80 10.0 undecidable manual SG 53 0.0015 -0.8 0.1
--.RMP.Z. 1988-07-17T21:12:19.10 10.0 positive manual PG 53 0.0015 0.07 3.3
--.RDP.Z. 1988-07-17T21:12:18.95 10.0 undecidable manual PG 71 0.0014 0.25 1.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download