Earthquake with magnitude of Md 2.2 on date 08-08-1989 and time 15:00:13 (Italy) in region 11 km NW Pomezia (RM)

A magnitude Md 2.2 earthquake occured in region: 11 km NW Pomezia (RM), on

  • 08-08-1989 13:00:13 (UTC)
  • 08-08-1989 15:00:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.76, 12.46 at 0 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 11 62966 62966
Ciampino RM 13 38412 101378
Roma RM 15 2864731 2966109
Castel Gandolfo RM 16 8997 2975106
Marino RM 17 43026 3018132
Albano Laziale RM 17 41715 3059847
Grottaferrata RM 18 20327 3080174
Ariccia RM 18 19407 3099581
Fiumicino RM 18 78395 3177976
Ardea RM 19 49183 3227159
Frascati RM 19 22087 3249246

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NW of Pomezia (62966 inhabitants)
15 Km S of Roma (2864731 inhabitants)
18 Km E of Fiumicino (78395 inhabitants)
24 Km NW of Aprilia (73446 inhabitants)
28 Km W of Velletri (53303 inhabitants)
35 Km SW of Guidonia Montecelio (88673 inhabitants)
36 Km SW of Tivoli (56533 inhabitants)
38 Km NW of Anzio (54211 inhabitants)
49 Km NW of Latina (125985 inhabitants)
66 Km SE of Civitavecchia (52991 inhabitants)
79 Km SE of Viterbo (67173 inhabitants)
90 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 2.2
ML-VAX 1.8
1989-08-08
13:00:13
41.76 12.46 0 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 97079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-08-08 13:00:13 ± 0.1
Latitude 41.76 ± 0.01
Longitude 12.46 ± 0.01
Depth (km) 0 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 97079

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) 972.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 283
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00575
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 97079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:30:48

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 97079
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. 1989-08-08T13:00:38.13 10.0 undecidable manual SG 14 0.0057 0.09 0.3
--.MNS.Z. 1989-08-08T13:00:27.69 10.0 undecidable manual PG 14 0.0057 -0.03 0.9
--.CP9.Z. 1989-08-08T13:00:22.80 10.0 undecidable manual PG 74 0.0034 0 1.4
--.RDP.Z. 1989-08-08T13:00:21.00 10.0 undecidable manual SG 91 0.0017 -0.01 0.6
--.RMP.Z. 1989-08-08T13:00:20.79 10.0 undecidable manual SG 75 0.0016 -0.04 0.5
--.RDP.Z. 1989-08-08T13:00:18.00 10.0 undecidable manual PG 91 0.0017 0.12 0.8
--.RMP.Z. 1989-08-08T13:00:17.75 10.0 negative manual PG 75 0.0016 -0.03 2.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download