Earthquake Costa Greca Ionica (GRECIA), Magnitude Md 3.7, 11 August 1988 time 20:54:06 (Timezone UTC)

A magnitude Md 3.7 earthquake occured in region: Costa Greca Ionica (GRECIA), on

11-08-1988 20:54:06 (UTC)
11-08-1988 22:54:06 (UTC +02:00) Italian time
11-08-1988 23:54:06 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 38.2880, 20.4910 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.

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Display location by

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity

Not available maps for this sismic event.

Seismic hazard

Not available maps for this sismic event.

Shakemap

Not available maps for this sismic event.

Felt maps

Not available maps for this sismic event.

Locations history

Type	Magnitude	Date and Time (UTC)	Latitude	Longitude	Depth (km)	Published time (UTC)	Author	Location ID
Bulletin Rev1000	Md 3.7 M 4.0	1988-08-11 20:54:06	38.288	20.491	5	2013-07-15 08:41:04	Bollettino Sismico Italiano INGV	75359

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	1988-08-11 20:54:06 ± 0.181
Latitude	38.2880 ± 0.0160
Longitude	20.4910 ± 0.0188
Depth (km)	5 (operator assigned)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	1000 -> BULLETIN-VAX
Event type	earthquake
Origin ID	75359

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)	2425.2
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	110
Number of associated phases, regardless of their use for origin computation	51
Number of defining phases	51
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)	0.00113
Epicentral distance of station farthest from the epicenter (degree)	0.08232
Number of stations at which the event was observed	42
Number of stations from which data was used for origin computation	42

Magnitudes information

Md:3.7

Field	Value
Value	3.7
Uncertainty
Num. used stations	2
Type of magnitude	Md
Reference to an origin	75359
Agency	INGV
Autore	Bollettino Sismico Italiano INGV
Time of creation (UTC)	2013-01-04 18:11:04

M:4.0

Field	Value
Value	4.0
Uncertainty
Num. used stations
Type of magnitude	M
Reference to an origin	75359
Agency	INGV
Autore	Bollettino Sismico Italiano INGV
Time of creation (UTC)	2015-04-28 09:54:13

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Residual	Weight
--.SOI.Z.	1988-08-11T20:58:13.00	10.0	undecidable	manual	U
--.VOY.Z.	1988-08-11T20:57:57.00	10.0	undecidable	manual	SN	330	9.1353	0.55	0.3
--.GRI.Z.	1988-08-11T20:57:56.00	10.0	undecidable	manual	U
--.VBY.Z.	1988-08-11T20:57:33.50	10.0	undecidable	manual	SN	333	8.1807	-0.2	0.4
--.SOR.Z.	1988-08-11T20:56:24.60	10.0	undecidable	manual	SN	297	5.2614	0.35	0.5
--.VOY.Z.	1988-08-11T20:56:17.70	10.0	undecidable	manual	PN	330	9.1353	-1.77	0.1
--.MT9.Z.	1988-08-11T20:56:10.30	10.0	undecidable	manual	SN	296	4.6176	1.45	0.1
--.MEU.Z.	1988-08-11T20:56:08.50	10.0	undecidable	manual	SN	257	4.6176	-0.81	0.4
--.VBY.Z.	1988-08-11T20:56:04.90	10.0	undecidable	manual	PN	333	8.1807	-1.44	0.3
--.ARV.Z.	1988-08-11T20:55:59.50	10.0	undecidable	manual	PN	315	7.7145	-0.31	1.1
--.ASS.Z.	1988-08-11T20:55:59.00	10.0	undecidable	manual	PN	311	7.6146	0.59	0.9
--.SOI.Z.	1988-08-11T20:55:42.00	10.0	undecidable	manual	SN	267	3.4854	0.16	0.6
--.SDI.Z.	1988-08-11T20:55:38.87	10.0	undecidable	manual	PN	306	6.1494	0.6	1
--.GRI.Z.	1988-08-11T20:55:36.50	10.0	undecidable	manual	SN	280	3.219	0.97	0.3
--.SGG.Z.	1988-08-11T20:55:31.30	10.0	undecidable	manual	PN	305	5.6055	0.33	1.3
--.HVA.Z.	1988-08-11T20:55:31.30	10.0	undecidable	manual	PN	329	5.7609	-1.69	0.2
--.OVO.Z.	1988-08-11T20:55:28.20	10.0	undecidable	manual	PN	300	5.328	1.13	0.6
--.FG2.Z.	1988-08-11T20:55:27.69	10.0	undecidable	manual	PN	312	5.3724	-0.03	1.5
--.SOR.Z.	1988-08-11T20:55:25.70	10.0	undecidable	manual	PN	297	5.2614	-0.53	1.2
--.MS1.Z.	1988-08-11T20:55:21.00	10.0	undecidable	manual	PN	315	4.8729	0.22	1.5
--.MT9.Z.	1988-08-11T20:55:18.40	10.0	undecidable	manual	PN	296	4.6176	1.05	0.7
--.SGO.Z.	1988-08-11T20:55:17.50	10.0	undecidable	manual	PN	301	4.5954	0.53	1.3
--.PZI.Z.	1988-08-11T20:55:16.50	10.0	undecidable	manual	PN	256	4.551	0.16	1.6
--.MEU.Z.	1988-08-11T20:55:14.55	10.0	undecidable	manual	PN?	257	4.6176	-2.8	0
--.MGR.Z.	1988-08-11T20:55:12.17	10.0	undecidable	manual	PN	297	4.2402	0.07	1.6
--.CDM.Z.	1988-08-11T20:55:12.00	10.0	undecidable	manual	PN	312	4.2624	-0.54	1.3
--.BCI.Z.	1988-08-11T20:55:09.80	10.0	undecidable	manual	PN	355	4.0737	-0.15	1.6
--.MMN.Z.	1988-08-11T20:55:09.60	10.0	undecidable	manual	PN!	296	3.8406	3.06	0
--.BAI.Z.	1988-08-11T20:55:08.00	10.0	undecidable	manual	PN	316	3.9405	-0.13	1.6
--.CSI.Z.	1988-08-11T20:55:06.36	10.0	undecidable	manual	PN!	296	3.5742	3.33	0
--.SDA.Z.	1988-08-11T20:55:05.00	10.0	undecidable	manual	PN	348	3.7962	-1.01	0.8
--.MO9.Z.	1988-08-11T20:55:04.67	10.0	undecidable	manual	PN	267	3.774	-1.05	0.8
--.SKO.Z.	1988-08-11T20:55:04.00	10.0	undecidable	manual	PN	10	3.7518	-1.33	0.5
--.GA2.Z.	1988-08-11T20:55:03.42	10.0	undecidable	manual	PN	269	3.6519	-0.66	1.2
--.BRT.Z.	1988-08-11T20:55:03.55	10.0	undecidable	manual	PN	316	3.6408	-0.35	1.5
--.ROI.Z.	1988-08-11T20:55:02.46	10.0	undecidable	manual	PN!	294	3.3078	3.21	0
--.SOI.Z.	1988-08-11T20:55:02.00	10.0	positive	manual	PN	267	3.4854	0.26	3.1
--.FE2.Z.	1988-08-11T20:55:01.20	10.0	undecidable	manual	PN	267	3.4632	-0.41	1.5
--.PHP.Z.	1988-08-11T20:55:00.90	10.0	undecidable	manual	PN	359	3.3855	0.43	1.4
--.CZI.Z.	1988-08-11T20:54:59.26	10.0	undecidable	manual	PN!	286	3.5187	-2.89	0
--.GRI.Z.	1988-08-11T20:54:58.43	10.0	positive	manual	PN	280	3.219	0.33	3
--.PLG.Z.	1988-08-11T20:54:56.30	10.0	undecidable	manual	PN	46	3.0858	0.03	1.6
--.SE2.Z.	1988-08-11T20:54:56.14	10.0	undecidable	manual	PN	284	3.0192	0.74	1.1
--.TIR.Z.	1988-08-11T20:54:55.50	10.0	undecidable	manual	PN	351	3.0858	-0.8	1
--.OHR.Z.	1988-08-11T20:54:53.40	10.0	undecidable	manual	PN	4	2.8194	0.71	1.1
--.LCI.Z.	1988-08-11T20:54:52.00	10.0	undecidable	manual	PN	318	2.7417	0.43	1.4
--.ATH.Z.	1988-08-11T20:54:50.00	10.0	undecidable	manual	PN	96	2.553	1.11	0.7
--.KBN.Z.	1988-08-11T20:54:46.00	10.0	undecidable	manual	PN	5	2.331	-0.01	1.6
--.KZN.Z.	1988-08-11T20:54:45.50	10.0	undecidable	manual	PN	25	2.2422	0.84	1
--.SRN.Z.	1988-08-11T20:54:38.10	10.0	undecidable	manual	PN	346	1.6317	1.83	0.1
--.VLS.Z.	1988-08-11T20:54:10.00	10.0	positive	manual	PG	145	0.1221	-0.14	3.2

TDMT - Time Domain Moment Tensor

Not available TDMT solution for this seismic event.

Fault Plane solutions in the area

Not available maps for this sismic event.

Download

Type	Description	Link
QuakeML - small	Event, Origin, FocalMechanism	Download
QuakeML - full	Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude	Download

Earthquake with magnitude of Md 3.7 on date 11-08-1988 and time 20:54:06 (UTC) in region Costa Greca Ionica (GRECIA)

Municipalities within 20 km from the epicenter

Municipalities with at least 50000 inhabitants

Origin

Uncertainty

Quality

Md:3.7

M:4.0