Earthquake with magnitude of Md 2.2 on date 04-06-1988 and time 16:23:06 (Italy) in region 7 km N Pomezia (RM)

A magnitude Md 2.2 earthquake occured in region: 7 km N Pomezia (RM), on

  • 04-06-1988 14:23:06 (UTC)
  • 04-06-1988 16:23:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7350, 12.4930 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 7 62966 62966
Ciampino RM 12 38412 101378
Castel Gandolfo RM 13 8997 110375
Albano Laziale RM 14 41715 152090
Marino RM 14 43026 195116
Ardea RM 15 49183 244299
Ariccia RM 15 19407 263706
Grottaferrata RM 16 20327 284033
Genzano di Roma RM 17 23970 308003
Frascati RM 18 22087 330090
Roma RM 18 2864731 3194821
Rocca di Papa RM 18 17034 3211855
Nemi RM 19 1943 3213798
Lanuvio RM 19 13632 3227430

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km N of Pomezia (62966 inhabitants)
18 Km S of Roma (2864731 inhabitants)
20 Km NW of Aprilia (73446 inhabitants)
22 Km E of Fiumicino (78395 inhabitants)
24 Km W of Velletri (53303 inhabitants)
34 Km NW of Anzio (54211 inhabitants)
35 Km SW of Guidonia Montecelio (88673 inhabitants)
36 Km SW of Tivoli (56533 inhabitants)
45 Km NW of Latina (125985 inhabitants)
70 Km SE of Civitavecchia (52991 inhabitants)
82 Km SE of Viterbo (67173 inhabitants)
93 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 2.2
ML-VAX 2.0
1988-06-04
14:23:06
41.735 12.493 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 70929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-06-04 14:23:06 ± 0.762
Latitude 41.7350 ± 0.0334
Longitude 12.4930 ± 0.0348
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 70929

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) 4703.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 289
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.00591
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 70929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:07:10

ML:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 70929
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
--.MNS.Z. 1988-06-04T14:23:31.22 10.0 undecidable manual SG 12 0.6549 0.74 0.2
--.MNS.Z. 1988-06-04T14:23:19.63 10.0 undecidable manual PG 12 0.6549 -0.63 0.8
--.RDP.Z. 1988-06-04T14:23:12.40 10.0 undecidable manual SG 82 0.1665 -0.62 0.5
--.RMP.Z. 1988-06-04T14:23:12.84 10.0 undecidable manual SG 64 0.1665 -0.36 0.8
--.RDP.Z. 1988-06-04T14:23:10.34 10.0 undecidable manual PG 82 0.1665 0.16 2.3
--.RMP.Z. 1988-06-04T14:23:10.86 10.0 undecidable manual PG 64 0.1665 0.57 1.4
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